Hey everyone I really need some advice on why I lose the energy after taking my Phentermine about 2 hours later!? I am on 30 milligrams capsules. I take it at 7 in the morning and I don't eat till about 8:30. I have really good energy for the first couple hours after taking it in the morning and then it dropped off all the sudden. I have been on Phentermine for almost one month now. I would really like to know about everyones experience with the energy they get from phen and does it last longer for you thru out the day?