I m a W/M 30 years old. 6 3 200lbs. Since Monday, I have had occasional cramping of the left side of my chest and/or heart area. I have occasionally become nauseous, dizzy, and began sweating for what seems to be no reason. The cramping or pressure on my chest seems to be worse when laying down. I have been a tobacco user for 14 years (chewing and smoking). It seems to be made worse with any kind of stimulant (caffeine, nicotine, etc).