anxiety
"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 & motivation.  I used to take a nap every day for up to 3 hours, I haven't taken one since about the 3rd day in.  My sex drive has come back slightly & the weight loss is very slow, about 1lb a week but that'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."