I believe you are in good company.
Marty Feldman and Abraham Lincoln, IIRC. and my old boss-lady. She was so good that I actually miss working for her.
Yes, Marty Feldman must have been in pain because he did not have surgery to correct his thyroid eye disease. The affliction added to his comic appearance, but he would have had terrible double vision and dry eyes, probably even corneal abrasions.