To your point about people asking inappropriate questions, I would probably be a smart ass, which I know, I know, is terribly out of character:
"How much have you lost?"
"Looks like I might lose another friend that doesn't seem to understand not to ask inappropriate questions."
But, to the question you want us to answer:
While dealing with things that are better, like back, hip, knee, ankle, foot pain from carrying around an extra 1/4 ton of weight. Reduced Fatty Liver disease. Blood Pressure. Sleep Apnea, Reflux.
But more other worldly were all the things I gained that I didn't realize I was missing, like DisneyWorld, walking, running, marathons, kayaking, horseback riding.
Tek