Recurring chest pain/tightening. Please help.

I'm a 23 year old man, I'm not as healthy as I could/should be in terms of diet and exercise but I rarely get sick, and I don't use drugs or drink to excess. When I was about 20 I started getting massive amounts of chest pain, feeling like the left side of my chest was being squeezed or twisted somehow. Occasionally this happened on the right side as well, but more commonly on the left. I figur... click here to continue

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