I'm on your journey, bad knees!! Have to lose 100 before surgery. I'm here for you!! Gayle Minneapolis

Weight loss is primarily how much you eat, so fortunately you don't have to do any exercise. It's very easy to overestimate, so as @sells mentioned a scale and being very diligent about tracking everything will be very important.

If you are able to walk, use a recumbent stationary bike, or any other sort of activity it will enhance the loss; if these activities are painful though be very specific in how you track your food, and focus on your calorie intake and you'll be fine.

@butterflygrl2003 have you tried water exercises? Your doc could prescribe pool therapy if you don't know how to get started. It's a great way to strengthen the limbs and core while off-loading your back, and therapy pools are usually a bit warmer so they help decrease pain, too.

I understand the frustration. I have an autoimmune disease, and was bedridden for several months. Re-mobilizing was so hard, especially since I still had to deal with the MG and try to not make it flare.

One thing that helped me learn to re-engage my core, without stressing my muscles or flaring the MG, was restorative yoga. It's done while laying on the floor (or a table/bed if you can't get to the floor). It focuses on retraining your body with normal movement patterns. Anyone with chronic pain or weakness develops abnormal movement patterns to compensate. The restorative yoga really helped me re-learn the basic stabilizing patterns, and helped me build from there. And, it's gentle, pain-free, and run at your own pace.

The other thing that helped me early on was logging what I was able to do in a day. Focus on what you can accomplish, no matter how small it seems. If log things like "prepared breakfast while sitting" and "walked up one flight of stairs," etc. I could look back and see the progress over several months. It's hard when you feel like you're in a mile-deep hole to even consider climbing out. It's even harder to see the progress you're making, because there's so far to go to feeling normal again. Now when I'm feeling hopeless, I look at my journal and remember "oh yeah, a year ago grocery shopping was the biggest accomplishment I had in a week. Today's a bad day, but it's so much better than last year."

Hang in there. You're here. That's taking action working towards progress. It starts slow, but momentum will build.

I'll hold your hope for you, it's here safe and sound, ready and waiting for when you're ready to pick it up again .