"i started two weeks ago on 150mg.  i noticed a difference within the first 3 days.  i wake up feeling refreshed, sometimes i have a manageable headache but within 2 hrs its gone.  i have a huge increase in energy &amp; motivation.  i used to take a nap every day for up to 3 hours, i haven&#039;t taken one since about the 3rd day in.  my sex drive has come back slightly &amp; the weight loss is very slow, about 1lb a week but that&#039;s also watching what and how much i eat.  the medication has helped with reducing my appetite but not by much.  i take it at night because it makes me tired.  the only negative side effect is that my skin always feels like i have bugs crawling on it.  i hope that goes away with time."