Not from stims as I do use caffeine and sometimes add ephedrine. And I have noticed some energy from some testboosters. I am guessing it's from having 3 boys and being 45 that makes it tough to always have energy. High libido and workouts still good. I again assume it's life just looking if anyone in same boat and your suggestions. Not struggling to get anything done just wish I had more energy in the mornings and after work....