That's why I started keto, Susie. My knees were so bad and I had to stop running. It took 3 weeks for the pain to go away, but it did go! I can't speak on eyesight, but I checked on the Diet Doctor sight, and found this. It may help.

https://www.dietdoctor.com/ana-lorenzo-profile

Stretching is wonderful. Have never had acid reflux so can't comment on that.