absolutely... some people just have bad reactions to certain compounds... that is COMPLETELY normal bro... thats just trial and error.. noone can tell you how you personally will react... i can tell you how you LIKELY will but there's no guarantee on that...Alright man twice a week then. Also isn't it possible that some people just have general issues with specific things like tren or npp or deca? Like rickrock said he has dick problems with tren and I'm sure he keeps his e2 and prolactin in check so is it possible to have your levels where they need to be and have it mess with you still? I seem to be having problems with npp but never had it with tren.