I was wondering what happened to you, so it's SOOO good to see you back here. Sorry about the health issues, but hopefully you're on the mend.
I can totally relate to your weight struggles. I really can. I lost 40 lbs only to gain it all back. I'm back on the wagon and am really trying for the first time in a couple years to get most of it back off. I'm doing well with my eating, but my exercise isn't quite where it needs to be. I think trying to tackle one thing at a time is easier than just going gung ho and "cold turkey" on my old lifestyle.
I'm glad you're back. I hope you can find the motivation to get back on your bike and ride again. Even if your cycling clothes don't fit, just ride in something comfortable for shorter times. Start by riding around the block, then a couple more, then you'll be back out there eating up the miles like you did before.
Take care, and don't be such a stranger.