Wow, I'm sorry to hear your family and friends don't understand. That's rough. I'm guessing if you are needing crutches you must be limping quite badly, do they not ask why? I agree with your husband, either just ignore them or work out a couple of one liners you can use to silence them. You are not the stupid one here. This is your body and you need to do what is best for it. Limping puts a lot of stress on your whole body and using the crutches will help ease that, just get some exercises to do for your shoulders. Has using them helped your pain levels? Do let me know how you get on. Best wishes.