I think plastic containers are ok for storing dry food, but I try to use glass for everything else. I'm beginning to be leery of canned foods (and soda cans) too after reading about the coatings used in them. But I'm torn because I like the "flame roasted" tomatoes that only come in cans, and it's nice sometimes to be able to just open a can of beans or soup, etc., for a meal.

That sounds bad with your joints. I hope it is only temporary and that it will get better. Neck pains are the worst. At least my problem is only in my hands so far.