Good luck with your surgery. When I did my lap band surgery 9 months ago, I was riding after
two weeks with the doctor's blessing. You should ask, but there is a good chance you will be
given a thumbs up. All surgeries are different, though, so your results may vary. My doctor
said "If it doesn't hurt, then it's fine." Actually, it was more than fine with him. Post-surgery
excercise is a big issue.
The lump does go away. I had a similar experience, but it disappeared after all of the post-surgery
I'm down 110# at this point, and I'm still slowly losing weight. I lose about 1/2 to 1 # per
week now, and I have about 35# left to hit a BMI of 25. I doubt I'll ever get there.