What is the cause of this?
411650
combination of Snapple and mayonaise.
660779
I'd check with a doctor.  There could be something physically wrong.
733393
It has many different causes. See your doctor.
1099766
It could be an iron deficiency but sometimes it is caused by teh rapid growth of a growth spurt or something you will either grow out of it or need to get more iron in your diet.
884563
Get medical advice, find out what is causing them...;
275546
This could possibly be several things, and it may depend on when it happens. Possibly an ulcer? You should seek medical advice if this persists. Best of luck.
150332
because it is caused by contractions in the diaphram (the muscle under ur lungs) :) (check out my question..no1 has answered it yet... lol)
859249
There might be a medical reason for it, so see a doctor to be safe.
1127912
not sure but maybe it has something to do with the blood vessels around that area
968967
Are you taking drugs or drinking heavily.  That could cause it.\n\nCoach
1157659
No!  It is caused by bacteria.
981116
There are many reasons:\nCheating\nlying\nabuse
876843
It can be several things. The most probable is magnesium or potassium deficit or restless leg syndrome
47974
It may be panic attacks, not always a known cause as to why the occur..can be in subconscience. I'd talk to your DR
258845
From what I have found, there are no medications that will cause it. The exact cause is not known, but usually, it is secondary to another problem, such as infection.
746370
This could be caused by several different things. Could be nothing, could be serious. See your doctor.
32704
it is a known cause of canser.dont worry, you have to drink alot.and i mean ALOT