I agree with everyone here.  Everyone is different.  My wife took the full 3 weeks off she was granted and enjoyed every minute of it (she has a desk job.)  I too have a desk job.  Monday was surgery, got home on Thursday and went back to work on Monday for 1-2 hours (about all I could handle) for that week.  My mom drove me to work and waited and pushed for me to get done.  I have the ability to take work home so I would work 1-2 hours in the afternoon at home.  Week 2 I was working 3-4 hours and taking the afternoon off completely.  Week 3 was 5-6 hours at work and then home.  Week 4 was back to full time.  I had short term disability as well as paid time off so pay was not a worry.  I sometimes wish I would not have pushed myself to go back so soon but after 115 pounds gone almost a year later who cares.  It was a success and that is all that matters for me at this point.  Good luck and you need to decide what you are going to do.

Hey.  Good luck on the plane.  I flew in August after having surgery in March and was amazed.  I had lost about 90 pounds and was so looking forward to the first time I flew and did not feel uncomfortable.  It was so nice not having to put the armrest up so I could fit between.  I actually was not intruding on the lady's space next to me.  What a WOW moment!  I am now over 105 pounds lost and look forward to shopping for new clothes (pant size 36 regular from a 44 relaxed, shirt from a 3X to XL and about ready to try Large.)  DOUBLE WOW!  It just keeps getting more and more fun.  Good luck on the flight and you will be amazed how much better it feels.