"i started phentermine 3 weeks ago after the doc advised me that my bmi classified me as &quot;obese.&quot;  many people would probably not consider me &quot;obese&quot; in the traditional sense.  i am 6&#039;1, male, and three weeks ago i weighed in at 228 pounds.  today, i am down to 207 pounds.  i work out with a trainer 3 times a week (but also did this before going on phentermine, and was hitting a plateau). i am trying to get down to 185 and will probably hit it by september.  question for everyone: my appetite completely disappeared the first three weeks, but it has now slowly started coming back only in the evening (usually around 8 or 9pm).  has anyone else experienced the hunger returning in the evenings at this stage?"