Flying was just fine. I was six weeks out from my surgery when I flew to Disney. I was apprehensive about the roller coasters. My surgeon gave me clearance for roller coasters, but the only one I went on was Big Thunder Mountain, though I would probably have been on Splash (which was closed during my trip). In retrospect, I should have gone on the coasters, but I was playing it super-safe.
PM me if you want to talk!