Had planned to include mast with my Test/Deca blast, went with Mast P because I was unable to source E. I did my first pin of mast p a couple nights ago, felt fine and went to bed. The next day I went to the gym in the morning felt normal until I got home. I got really bad anxiety, heart palpitations, dizziness and just feeling generally unwell, this lasted for a few hours. Stupidly pinned again and it was even worse today. Obviously I'll be dropping the Mast and possibly replacing with Proviron. Just wondering if anyone else ever experienced this or can explain this, it seemed super odd to me as I have never had this reaction to any other compound. Also only pinned 50mg both times which is not a lot