obesity
"Started on phentermine 30mg just 4 days ago with a private prescription.  NHS are not allowed to prescribe it.  Starting weight 15 stone 1lb and have lost 10lb already. I'm 5ft 4in tall with a small-medium build, age 34.
Pretty much lost my appetite completely but I also feel a bit uneasy/jittery.  I was hoping I would experience some of the more euphoric side effects but I'm also suffering with a heavy cold so maybe that's why I don't feel energetic. 
I've had quite a few headaches already but this may be that I need to increase my fluid intake so I'm going to do that. Yesterday I only took 10mg (1/3 of my tablet) to make sure I could sleep last night. The first 2 nights I wasn't able to sleep.  Pleased so far."