What could cause a pulsating pain in left side?
817774
not enough information. ever heard of a Doctor?
660779
I'd check with a doctor.  There could be something physically wrong.
368637
Appendix possibly.  Have you a fever?  Vomiting?  Diarrhea?\nIf could also be Irritable Bowl Syndrome, Colitis, or if you are a female it could be an ectopic pregnancy.\nDepending upon the severity of the pain go to the doctor or emergency room (casualty).  Good luck!
965917
when i used to work out at the gym using weights i started getting a similar sort of pain and went to see my doctor as i thought it was my heart, he told me i had torn a muscle in my left armpit and gave me tablets to fix it, but i seriously used to think i was having a heart attack as the pain also shot down my left arm. It could also be severe wind  i know it sounds stupid but wind can travel anywhere in the body. But i would get him to your doctors to be safe. good luck.
1085098
Do you have any other symptoms like fever, chills, nausea or vomiting?   When was the last time you had a bowel movement. \nThe most common cause is constipation.  If you have accompanying fever or diarrhea, you could have an infection. \n\nIf the pain persists or becomes progressively more severe you should seek medical attention!\n\nIf you are female, it could be menstrual related.. or even an ectopic pregnancy.  \nPlease call your doctor if this persists!
174304
could be a sign of circulation problems. you need to see a doctor, it is nothing to mess around with.
900204
It sounds like a heart problem associated with your circulation. I would go to a doctor.
369602
Sounds like your appendice, but if it last for much longer go to the emergency room, it could be something like cramp or maybe constipation
603128
Sounds like you are experiencing the same thing I was.  I was feeling a sharp pain in my chest on the left side that would cause my body to clench up and make me short of breath.  I was worried, but I went to a doctor and it turned out to be a pulled muscle in the ribcage.  Every once in a while it would spasm and bother me.  They gave me some Motrin and it went away over time.  I think I provoked it when I started working out after a long period of laziness, but now that I'm back in shape it hasn't bothered me at all.\n\nGo to a doctor, though, to be sure.  They gave me an electrocardiogram just to make sure there were no serious issues.
266125
I had something similar only mine was on my left side and it didnt hurt when i peed but it did hurt a constant dull pain and it hurt worse when i breathed in. they told me it was  e-coli. but the place where you described it... between your belly button and hip was where mine hurt
376239
If massage helps, the pain could indeed be muscular.  But be aware that hypertension leads to heart disease, and the heart has many ways of warning you.  Usually it is a central chest pain that indicates heart problems, but left sided neck/shoulder pain can also mean heart trouble. I'd have the person be checked out by a doctor to make sure heart is ok.  Good luck!
1166501
Could be your gallbladder. Gallbladder pain can be constant or can come and go and can be on either side or right in the middle. Chances are it would get worse after eating a meal containing fatty items,but not always the case. (I had my attack after prime rib) \n\nYour best bet is to get an appointment as soon as you can to get it checked out to rule that out as well as any other serious problems.\n\nGood Luck!
388751
Could be a circulation problem. I used to get it in my arms when I was driving for a long time, and it eventually turned to pain. That was a few years a ago. Turns out now I have fibro myalgia which is phantom pains all over my body (its really fun...) You could have carpel tunnel, or anything else. Make a physical appointment, and tell your Dr. He/she may want to do blood work just to check up on it.
734669
If the majority of the pain is on the right side it needs to be checked ASAP!!!  Sounds like a gall bladder attack or appendix's. Both can be very serious if they rupture.  Go the ER if the pain is that bad!!  Waiting can make the situation much worse!!
747578
If it's your left side it could be a stomach ulcer. Alcohol is well-known to aggravate an ulcer.  Do you get this pain when you eat really acidic foods (like orange juice or tomato sauce) or spicy foods?  And if it hurts, does taking an antacid or drinking milk help to ease the pain?
763050
Do you slouch or do you sit up straight? This could be nothing more than muscle spasms or pain from trapped wind. If you were suffering heart trouble you would be feeling the pain in the centre of your chest, in your neck or your arms. I don't think it could be your liver or you would be feeling 'out of sorts' too. Call NHS direct and have a word with them to see what they think. They will not offer a diagnosis but will advise you to visit your Doctor if they think it neccessary.
882330
could be pregant, appendix  maybe is infected possibly gall bladder. YOu might have stones in their somewhere.