There is a reason that things don't heal. Mostly to do with a compromised immune system. But you should at least get a proper diagnosis a some doctor for what the issue is. You deserve to be treated with respect. If they lose paperwork then they should find it.

If you find it hard to get your message across do you have an advocate who can get the ball rolling? It is hard when you aren't feeling well to get what you want. You deserve to be listened to and get help. Change doctors if you need to. Get help from a friend.

You are not an idiot. You are sick and need attention.