WTG on the weight loss!!  For the exercising I took it slow.  I felt like I should have been exercising as soon as possible too.  My surgeon never commented on having to wait or anything so I just started slow and never pushed myself.  My preferred way of exercise right now is to listen to my ipod and dance.  LOL  For me just having fun dancing and singing to my favorite songs is much easier than a treadmill right now.  I wouldn't put too much pressure on yourself though just do what you can and it will get better and more often. 

This is how it's described in my notes from surgeon:

Hibernation Syndrome:  2-4 weeks after surgery, your body reacts to the smaller amount of food.  You feel tired, lethargic and often depressed.  Your body wants to slow down until the old food supply returns.  This just means your body is recovering from the effects of major surgery.  The best way to deal with this is to recognize the symptoms and know they are normal.  Start to exercise so your body gets used to using body fat as a source of energy.  When your body adjusts, the hibernation syndrome will end.  This may take 2 weeks.

Did you have to do a pre op diet before your surgery?  If so how did you handle the protein shakes during that time.  I am on my 2nd day of my 2 week pre op and I just cant handle the protein shakes.  They make me gag too.

Refried beans, tortilla soup Yum-oh

I can't do protein shakes, they gag me, so I'm only eating foods high in protein.  Try scrambled eggs, babybel cheese, baked fish, those are my faves