I am a 25 y/o female 5'3 158 lbs...Sometimes after laying down on my left side, bending over, or just after doing random things, I have a sharp pressure in the middle of my chest. It will worsen if I move my left arm around and I can also feel pain in my jaw. It usually lasts a few minutes and then goes away. I dont have any other symptoms other than sharp chest pain, pain in my jaw, and left arm. What could this be? Is it possible to have a heart attack at 25?