I'm a male, 50, 5'10", 165 lbs, and in otherwise good shape.
For several decades, family members have mentioned that when I'm asked a question, my eyeballs sometimes roll back in my head while I'm pondering a response to a question. It only happens then...just once in a while just before I respond to a question.

I can not intentionally roll my eyes back. I only do it when asked a non-important question in a laid-back environment....questions like "Where did you eat last night?", "When did I go shopping last?" But if I'm asked a serious question, or a question at work, it never happens. I don't realize I roll my eyes back until someone points it out...and I only do it for a second or so. I've never had a medical or eye problem that I'm aware of.

Thanks i advance for any comments.