For me it's my ill formed ear canal opening, I can't get buds to stay in!! I guess I could get the ear wax to build up...EWWW!! There is a company in MT that specializes in all things headphones. I can't remember their name, I'm sure someone here can point you their way. You could get one of their mini headamps and some over-the-ear cans.
Welcome to AZ, bet it's nice to see the grand babies