Could I be having a heart attack?

It might be costochondritis. Look that up and see if it fits. It’s a cartilage inflammation and can be quite painful. If it’s that, it will eventually go away, and you can take anti imflammatories for it, Ibuprofen you should try immediately to see if it takes away the pain.

It’s nothing serious. If you had your ass kicked like real hard, you’d not worry about such luxurious chest pain. I am not suggesting I had mine kicked though XD lol

Your muscles will be normal in a few days’ time. I think your mum is right, too. I mean what the hell is wushu anyway? XP jk

Martial arts

if your left arm and jaw feels pain , then these are signs ,obesity is a reason too

Seriously, it would scare me if my mum knew what wushu is XD

Why is that? does she hit you?

Haha XD ofcourse not! I hope your get better as soon as possible :)

no. Dude, you’re 14. That might be your muscular/skeletal systems readjusting.

physically growing might be kinda painful

If it’s tender to the touch, I don’t know, but if it’s not, then I wonder if it might be gas pain in your stomach (which is higher up than people often think, adjacent to your heart). Try some spinal flexing and extending stretches, like yoga. If it is gas, that can help it to pass through your system.

My uncle had a heart attack and he thought he only had indgestion so maybe