I did an endo a couple of years ago and landed on one elbow. I still have some scars from the road rash, but I didn’t do any permanent damage (as far as I know).
Last month I noticed that I had a lot of pain in the elbow and a loss of strength. I went to my chiro, who has a lot of experience with sports injuries, and asked him if the endo might have caused this.
He poked and pulled and said that I was the proud owner of an anti-tennis elbow.. Tennis elbow typically is felt on the outside of he joint. What I have is on the inner side.
He also speculated that it is more related to the hours I spend in front of a computer using a mouse than it is the hours I spend on my bike.
I also don’t notice the pain while riding.