Question is really when should I be worried? Clen increase metabolism slightly which is basically like you rubbing a little extra. It's not that effective and especially on its own. It's quite dangerous because you'd have to up the dosage so much. In my opinion not worth it. I find Mk677 to be a much superior addition.10mg should decrease chances of hunger while keeping gh high.
Thing with mk is that you can get away with eating more, no cramps, no raised heartbeat, better sleep and recovery. It also doesn't shock the body coming off cause with clen you'd have to decrease calories when coming off not to gain back weight.