Chest Pain & Cramping: Understanding Potential Causes & Relief

Question
Hi im a female age 22,( I have not gotten much sleep lately) I have a Sharp stabing pain in the center of my chest between/underneath my breasts .my chest mainly feels heavy &pain/sharp stabbing increases when I inhale .I am use to the Sharp pains in my side or in my chest above the left breast but not this pain I'm experiencing now ..and another problem I starting experiencing after birthing my two children which I'm sure has nothing to do with each other is..qif I bend over forward as if I was sitting on the floor reaching for my feet to stretch its almost if a muscle right underneath my xiphoid process moves up and then cramps because it feels as though I have a cramp and I have to sit up straight imediately because its so painful & when I feel the area I actually feel a really tight ball there. Eventually & slowly after sitting up straight it gots away but its very irritating & painful & prevents me from doing allot of things especially during stretching or working out ..this happens all the time & its not like I over stretch either

Answer
those two things sound like separate issues.... the sharp pain when bending over, feeling like something caught... sounds like your abd muscle spasms a little... keeping those in good shape (crunches/situps) should help.

The first problem... sharp stab pain between breasts... there are a lot of causes, occasionally serious... blood clots (risk factors- smoking, birth control pills) or something simple like a little pleuritis or viral infection.  If it persists... get it looked at....