Why do I suddenly lost weight?
400869
what are you doing here??????? Please seek a doctor's help immediately...it could be serious.
334209
The weight loss may be bad so talk to a physiscian, but you period stops or starts when there is enough (or not enough) of bady fat
156131
What kinda of question is that.... Losing weight isnt some thing that just happens....  You have to exercise and eat healthy...  and dont expect to slim down in days... you know it took time for you to put weight on and it will take time to take it off...
47474
Are your friends maybe concerned because you lost all that weight in a very short ammount of time? maybe they are questioning how healthy it is for you. If you yourself are concerned that your out of control then maybe let your docter know how your dieting has come along and let he or she be the judge
673458
It might sound weird, but maybe you're not eating enough. You're doing a lot of exercise and burning a lot of calories, which is AWESOME. I know that in order for me to lose weight when I exercise a lot, I have to eat my activity points (on Weight Watchers). I've lost 50 pounds on it. I hit a plateau as soon as I lost 20 pounds as started exercising. I couldn't understand it...why am I exercising like crazy and not losing weight? I started eating my activity points and the weight just started dropping off. I mean, like, instantly. I lost about 8 pounds in two weeks once I started eating a little more each day that I worked out. I think it has to do with your body going into a starvation mode because it's losing so many calories. If you have any other questions about it, I suggest you check out the LJ forum that I post on. It's full of helpful weight loss tips. Here's the link... http://community.livejournal.com/_weightwatchers/ Good luck! :)
446956
If you have recently lost a significant amount of weight, or have increased your exercising a lot, these may be a few causes, but I would talk to mom/guardian and go see the doctor if it doesn't come
607498
ACK!! dont!  That speed of weight loss could cause all sorts of problems, from stretch marks to blood pressure to pre-diabetes!  Talk to a doctor if consistant portion control, calorie reduction, and/or increased exercise really hasn't worked.  I mean, we've all tried dieting for a week or even a month, but for it to work, you have to stick with it longer.
268199
well, the short answer is that people who are highly overweight have a great deal of water retention.  Their fat cells are engorged with water, and that's where a lot of the weight comes from.  When you start working out and cutting down on the food, your body will quickly adjust to the new activity and calorie-intake levels, and that water weight can go away pretty quickly.  When it comes down to actually depriving the fat cells so severely that the cells become fully metabolized, that only happens after they have been taxed over a long period of time.  In simple terms, your body needs to be convinced that those cells need to go and go for good.  \n\nIf you think of fat cells as little plants, dieting and exercising is like denying the plants water.  That first big shot of weight loss is like when the plants droop and shrivel.  But if you fall off the wagon and re-water the plants, tyhey perk right up.  The real weight loss happens when the plants die and die for good.  That takes a lot more than just letting the plants droop, if you follow.  \n\nAs for that first spike in weight gain, that's an old evolutionary survival mechanism designed for when prehistoric nomadic human tribes had to relocate once the food in a certain location ran out.  Once it's time to move, there's a sudden sharp increase in physical activity, so your body says "uh oh!  we might be in trouble!" and you will start storing body fat more efficiently, thereby gaining weight.  Your body thinks you're about to do some travelling, which may mean going a long time without food, so it's storing up some fat just in case that's true.  Once your body becomes accustomed to your new activity and calorie-intake levels, your body "calms down" and then you can start slimming down (this is why consistency is so important in trying to lose weight).  But it's the sudden shock to your system that makes it freak out and start storing all the fat that it can "just in case."
6418
Same here... I've been losing weight by making some easy changes.\n\n• Don't skip meals (this one is important)\n• Drink lots of water\n• Don't eat too late (basically, don't snack before bedtime)\n• Find good ways to deal with a sweet tooth- I've learned to drink a diet A&W root beer to help with mine!\n• Exercise- this one is pretty obvious. Just fit it in whenever/wherever you can, because every bit counts.\n\nAlso, because your weight gain has occurred relative to a change in your life (going overseas) look at what the actual culprit is. What has changed in your diet/nutrition/lifestyle since you have been there? \n\nGood luck.
806946
Various reasons:\n\nSudden change in exercise\nSudden change in diet\nStress\nIllness
33590
I am going to offer a different aspect to this. I am wondering if you gained a pound and wodnering why it happened? I may be wrong, but here goes. Your weight can fluctuate naturally due to things like water weight, and 1 pound in a day could be just that. Or if your scale is one that rounds, it may be not a full pound, but it rounded up to one.
772612
i lost 20 pounds within a short amount of time. and what was funny was, i didnt change my eating habits. i jus exercised regularly. running (jogging, sprints), sit ups, and push ups.
91720
You don't have time or you don't have the energy. I lost 35 pounds in two months with out exercise. I could of lost more if I did exercise. This link can help you out.
1108695
why would you need to lose weight you sound pretty thin
991690
Ummm... I got stressed out and lost 26 pounds in to weeks because all I could eat was crackers. Like, maybe ten a day, and I had to MAKE myself eat them.\n\nI've been told that what happens is you trick your body into thinking you're starving to DEATH and it starts sucking up and holding on to every calorie you consume, which is why people who go on crash diets gain their weight back so quickly when they start eating again... \n\nFor the record, I'm eating normally now and I haven't gained back a single pound.
698159
I really wouldn't worry to much about it if I were you.  Sometimes that just happens.  You get lucky and have light periods.  \n\nIt could be because you are dieting and have lost a lot of weight, because changes to the body like that can cause more changes with our monthlies.  Don't worry to much and if you are worried go to the doctor and get checked out but I believe it is just a change in the body.
21753
Don't concern yourself so much about the loss of pounds, but more about changing your food habits. If you think about what things you are eating that cause you to gain weight & cut back on them, as well as maintain a moderate exercise routine, you should start to shed pounds. I have lost over 150 lbs. in the last few years & did not do one minute of dieting. I eat whatever I want but I keep in mind what I am eating & have trained myself to be aware of when I am full, etc. It takes awhile to make changes that will last a lifetime but, once made habit, you will be surprised at how easy it is to maintain whatever weight you wish & still not deny yourself what you want to eat.