Yes my name is Michael 46 years of age I have been taking this pre workout formula N.O Xplode I have been
off of it for a 3 weeks now and took it today. after an hour into my work out my heart was racing I felt like I
was having a heart attack I sat down in the gyms lobby and tried to calm myself but I barley made it to the lobby I felt this way one other time. I was so close in asking someone to call the ambulance I was scared this product has a lot of caffein and nitric oxide took the day off from work any suggestions Dr ?