Why does this happen?
350957
it just has to do with our calender, there is always going to be the same days in november and march, bcause it is a constant. there are always the exact same number of days between mar and nov, and its devisible by 7, no weird things, just math, if we made weeks 6 or 8 days long, some other month would logicaly have the same days.
612442
Does that really happen here? I am surprised. Cannot comment unless you provide some case details.
433314
Usual this does not just happen at one time of the day so if that is the case then it may be because of one or more of the things you have listed.  I suggest you eliminate them one by one ans see what happens.
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
1043971
Am I the only one who gets this?
657465
I have heard that the reason that happens is because you are nervous possibly\n:)
711776
it happens from a change of weather, it can happen if u dont take good care of yourself take your vitamins or wear socks all the time it happens.
465443
some times it happend due to spyware or warms..\nPls scan your system using microsoft anti spy ware..:-)
185568
This usually happens when there is dust between the card and the slot.\n\nAnother reason could be that the card is not fitted properly. Remove it from the slot and reinsert it back.
829551
Don't worry, it could be just some kind of added stress on you with school, sports, etc.\n\nIt happens, especially when you're younger like you are.
562145
That happens because of genes. Its heriditary. It doesnt cause anything as far as I know.
984084
that happens to me also it is really annoying i dont know
135094
Maybe its from friction, with your clothing or something...
101777
Probably for bad behavior.  It happens to me all the time.  Ouch!  Mom! Stop that!  Bye!
570360
i never really understood this...but ive been experiencing that since my 8th grade basketball team and all through high school. *shrugs*
29044
it could be nervous tics.\n\ni have it happen sometimes.
621152
See a doctor.  There are certain ailments that cause this to happen.