No matter the physical part of your weight loss journey--which is extremely important-- the most important part is the mental and logistical. I've written an article about it right here, talking in vast detail how I lost weight https://anonwit.medium.com/a-guide-to-lose-weight-and-fat-101-107a8f508ffc .
My humble opinion given your state is to go visit a food doctor and maybe find some form of treatment and combine it with some type of physiotherapy and/or pilates/ water therapy.
Let me know how it goes! :)
Thank you for your comment.