Is this recent? AV747 has hit on something. Symptom. If you are currently seeing a medical professional, definitely bring this up. There are physical and mental causes for this type of symptom. And, realistically, plastic bags and flip-flops aren't going away anytime soon.

Not that I go to a lot of movies, but when I do go I bring a pair of ear plugs with me. I don't put them in all the way. Just enough so that I can listen comfortably.

Hang in there!