I starting having pain yesterday in the morning on my upper left side under ribs. It wasn`t to bad in morning but by evening I was sceaming in pain. I went to the doctor this morning and she did X-rays, some bloodwork, EKG. So far everything has come back normal. Tommorow I go for a sonogram of the abdominal organs. The pain is less today but still fairly bad. I can`t lay on my left side at all, it hurts to bad. I have felt tired and out of breath alot too. Anybody ever have anything like this? Could it be costochrontis?? Thanks for you imput!