I started my first cycle this morning, after cruising 200 mg E10D. Starting with 150 mg for the first couple injections, to see how things go, and then go up from there. Then this evening, it was like I was having a panic attack. Heart was racing, my blood pressure was fine, at 128/70, but my heart rate was 87 beats per minute. Everything seems fine now, normal blood pressure, normal heart rate. This never happened doing 200 mg. Can someone explain to me what could have caused this. Could it be due to different type of gear? Last injection, before today was seven days ago.