Although clen's anti-catabolic effect helped me keep my strength gains, I'm so glad to be through with it. I planned to take it for 6 weeks, but after the 5th, I had enough. I had constant mood swings all depending on when I had last sprayed my dosage of clen. I honestly felt like a bitch on her period. Any who, I was wondering if anybody else has trouble remaining stable when on Clen?