Have you tried other supplements or prohormones? I would do other stuff before the m1t. Some supplements have BIG LETTER WArnings about heart conditions and you may want to monitor your blood pressure constantly. There are some ph that may not have as many side effects and maybe safer at this time. I would also go to the doctor and do several (or as many) tests as possible to create a health baseline so that later you can compare the results and be proactive about your health. Your doctor may be sayiong that the extra palpiations are not an issue because he does not know that you are thinking about using ph or pro steroids. Compare the ingredients of those bottles and ask the doctor what does he think about them? Tell him that your brother, or maybe a friend of yours told you about them and you want to know, you don;t have to tell him that you are going to use them.

Anyway, take care of your heart you only have one, and it may not be worth the extra lean muscles.