Injected crystal meth few weeks ago and did not go well my heart started pumping so fast as to almost i was going to have a heart attack and after a long day i managed to still be alive so i did not go to the hospital. After never trying needles again i smoke and my heart gets really tight and chest pressure hard to breath almost like heart attack or stroke feet turn bluish sometimes i feel like my veins are more green and im not getting enough oxygen idk whats wrong doc says my heart is fine gave me anxiety medication but it literally only happens when i smoke sometimes first hit ??? Can i have damaged some organs or caught some disease ?