First off, I took jack3d with dmaa for 4 years, so I'm familiar with dmaa. Towards the end when it got banned I had to significantly decrease the dosage (yeah, I was mixing 4 scoops with OxyContin pretty much to get high bc I was a junkie) because I started having severe panic attacks. Well I just got out of inpatient rehab after a 5 year addiction to opiates and benzos and am clean off everything. I gained a significant amount of weight so I ended up lucking out and finding old oxyelite with dmaa. I took 2 at one time today and trained. My heart was skipping beats and I felt like I couldn't catch my breath. My heart was pounding out of my chest and it scared me so I stopped working out. Is this normal for this supplement or is there a chance my heart may be damaged? Before anyone tells me that "this site isn't a doctors office and stop fucking with your life and quit asking people on the internet" I'll let you know that I went to the hospital 13 times worried about my heart and also saw 3 cardiologists and they all cleared me.