I just dont get whats going on. I am very inshape and have been running 3-5 miles every other day for the past few years. This happened a few years ago and I ended up quitting running for a while and havnt had it since untill the past 3 days in a row I could barely walk back to my house it hurt sooooo bad. I also do Yoga a few days a week so i am on a very strict stretching routine. i have been doing a lot of research and most forums say cramps happen on the right side, not a whole lot on the left. but it does almost feel as though i tore a muscle. The thing thats really wierd is that I walk for .5 before i start actually jogging to warm up a little, then ill take what seems like 20 steps then my side feels like it was torn open by a foreign object and then i will strech and walk it out and as soon as my foot hits the pavement to jog, it stabs again but worse. sometimes it hurts so bad i cant catch my breathe...has anyone else had any experiance with this cramp? or do i need to make a visit to the doctor? Lately i have been doing a milage builder program and have not had any problems till now, do you think i really did tear a muscle or pull somethingin my stomach?