At the beginning sorry for my english 🙂 I was taking BCAA for a few days and I was feeling really great physically and mentally, my humour and creativity was awesom, but one day after 15 minutes from taking BCAA my stomach was in bad condition. I had a very bad pain. So I tried to take only pure leucine but nothing changed. My stomach hurts really bad after 15 minutes, every time when I take BCAA or leucine. I tried to mix leucine powder with lemon juice and it was a little bit better – pain wasn’t so bad, but still it was huge discomfort for me. I take small doses, 5 g. And I really want to take it, because my mood is great after that – only stomach is upset… Can’t find any advice what could be the cause or what can I do. Should I drink more lemon juice with leucine or maybe drink or eat something differen with it? I will be very grateful for any advice, Michael.