2 weeks post op TT
VSG on 04/23/12
RNY on 02/06/13
Drains will come out whenever they get below whatever level your doc is comfortable with. Just bear with them for awhile. It's a lot better to have the drains versus a seroma. None of my drains hurt while in or hurt coming out. They're just a nuisance to deal with. And it feels funny when they're being pulled out.
I was still very much on pain meds at 2 weeks out, and just starting swell hell. Hopefully, you'll get past it faster than I did. But the "worse in the evening" thing is pretty normal. It's a combination of swelling and muscle fatigue, and the only thing that helps is to lie down. It WILL get better, but you have to practice patience.