I have done a few cycles with sustanon Edited andropen. When I doI get a shortness of breath and irregular heart beat thruout the day. It happens alot. I respond good to it but I am not sure if I should do it again. Could it be one of the esters, or maybe juice is not for me? Maybe try testE, or C. Has this happend to anyone? It does go away about 3 weeks after last injection. Please help , Thanks J