"i started phentermine on 04/17/2017 starting weight 236, as of 05/08/2017 my weight is 225. i am on a strict 1200-1300 calories a day diet. i work out for about 25-30mins at the gym (usually just walk about a mile a day) on my lunch break. i feel like i should be losing more. i weighed myself this morning and i&#039;m still 225. i&#039;m happy to have lost 11lbs so far but would love to be down more before my dr appointment on may 20. also, i feel discouraged since i haven&#039;t lost anymore this week. "