I experienced almost the exact opposite. My heart rate was up and I had insomnia. How often are you spacing your doses? Are you taking anything else (supps, AAS)? How much are you takin? What's your diet like...more info!

I get the same thing. I get extrememly tired from it and i don't know why. Atleast your not the only one. I also get extreme shakes and i am pyramiding up from 20mcg to 140. This isn't the first time i am running Clen, and also isn't the first time i am getting tired from it.

Everyone has varied sensitivities to stimulants. Having a "crash" as the stim wears off is fairly common so if you're asking if there's something wrong with you, then no, I strongly doubt it. I'd be more worried about outlawtas2's reaction with the prolonged tachycardia (increased heart rate).

Try using Thermorexin with it. You'll get the energy you need and added fat loss. Then you can use the Thermorexin at a higher dose in your off weeks.

Are you guys using a clen/keto combo?? If so the ketofifin will definitely make you very tired.

Champ