what is it when you get up and feel dizzy or faint and you eyes black out but you dont faint ?
104647
I could be low blood pressure.  It could also be that when you stand up quickly, your circulation changes.  When you're sitting, you have a lower heart rate... the act of standing up (and doing it quickly) changes that resting circulation.  \n\nGood God, I hope this helps because I think I just confused myself.  ;)
884217
falling asleep is knowing you will wake up soon. passing out is when you don't know when you will wake up and you don't know what happened. i passed out a few days  ago and my fiends said i didn't   eat and that before they know it i was on the ground out cold.
207147
If you can see your finger nails (as in they are not covered up). If your nails have a yellow tent to them. If you skin is dry. If you get dizzy spells or feel light headed. The last two are in extreme cases.
298699
light headedness is most often caused by low blood sugars, and anemia. If you feel better when you eat it might be your blood sugars. If it's anemia you'd have to take iron pills for a while.\n\nThe best bet is to go to the doctor and have a blood test.
345221
You need to follow up with your doctor. There can be different causes of low blood pressure and feeling faint. Your doctor needs to sort out the possible causes. Vertigo is just one cause of dizziness but it won't cause your blood pressure to be low. Using the Internet for information isn't always the answer. Sometimes you need to listen to the advice of your physician.
533361
When you lose too much blood, your blood pressure drops and you feel dizzy based upon the fact that your brain isn't getting enough oxygen. this is even worse if you are standing because the heart cannot pump hard enough to get what little blood up to the brain. this is called orthostatic hypotension. If you lay down, it becomes easier for the heart to pump the remaining blood around, but pretty soon only the main organs get blood, because that is what is needed to keep you alive and if there isn;t enough blood for even that, you will die.
129269
Get someone to drive you to the doctor or ER right away. Best if you don't drive yourself if you are dizzy, since it could be so many different things, some of them quite serious.  Most likely it is a middle ear infection or some virus, but in case it is blood pressure related, or some kind of seizure on-coming, ask a friend to take you in now.  Good luck--you will be fine!
1017203
The most common reason for lightheadedness when you sit up or stand up is that not enough time was allowed for the blood to reach your head.  The next question though, is why are you feeling that way now and maybe your weren't before.  Things to consider are whether you started any new medications recently, suffered any injuries, have gone through any dramatic life changes, etc.  If it persists, then I believe conventional wisdom would be to consult with your family physician.  As a safety measure, when you suddenly sit up....pause for a few seconds before actually standing up and walking.  Give blood a chance to get circulating.
275563
Certain meds can cause dizziness, as can colds and flus.  If it persists, it could be vertigo, or an ear infection.  There is medication to treat both of these, or a doctor can do exercises to reduce the fluids in your ears.  Additionally, if you have low blood pressure dizziness can occur, but not usually for prolonged periods.
462062
I have had this many times and it sounds like an anxiety attack. You become so afraid that you start breathing fast and hyperventilate. I was told to hold my breath and count to ten, after i had slowed my breathing down I didn't feel dizzy any more. I thought I was going to die when this started happening  to me and it seemed to get worse each time. When I realized I could control it and it was me being afraid that caused the problem, it has not happened again for several years. I am not a doctor, but these same symptoms happened to me.
656985
You are giving life to someone in need if you donate blood. It is a great feeling that you have saved someones life. Initially you may feel dizzy, however if you rest for an hour or so, you will come back to normal.
828837
This sensation can be caused by a broad range of conditions... anemia, low blood pressure, head trauma, etc. Sounds like yours is a lingering symptom of an inner ear infection or fluid on the ear drum. Do you hear a garbling of words when around LOUD noise?\nIf the light headed-off balance sensation is a chronic symptom, I would recommend contacting your physician and seeing if they can find & treat the cause. It may be as simple to alleviate as taking a series of antibiotics &/or decongestants to dry up the fluid that is impairing your equilibrium.
853623
I've "blacked out" as if I was going to faint...lasted for a few seconds, but then I would sit down and breathe slowly and it was ok.  That's only when I was like really dehydrated and had been forced to run miles or someting...
939559
No, but it may mean that you are so excited, the blood rushes from your head and you feel faint or sleepy
1083887
i think ur alright. ur probably getting dizzy because ur tired from loosing so much blood. i suggest a big fat steak and sum greens to boost up ur iron level. it'll make u more alert.   =)
693496
Gave blood.  I knew if I got up that I would faint but the nurse made me move to another seat.  I made it to the seat but then I took a nap.  That's what I call it.  When I was coming back, my eyes saw light and shadows of people but everything was wayyyy blurry.  The voice in my head told me to wake up because I knew that I had passed out but for about 8 seconds I couldn't move nor get my eyes to focus.  It's wierd.  You know what's happend to you but you can't react to stimulus.  I kinda miss it.
850405
me too! Its natural i guess cause my other friends say the same thing. But what is strange to me is that randomly everything in my sight goes blurry completely and I feel like Im going to faint. And what I mean by blurry, I mean seriously blurry like exactly how you become unconcious. And then quickly my vision returns.\nbut check with your doctor. Remember we only have one pair of eyes and cant replace them!