My Mom thinks I fake everything, what should I do?

Sometimes when someone is worried about something, they deal with it by ignoring it and hoping it will just go away, This may be what your mom is doing. I doubt that it means she doesn't care. I'm sorry that it caused you to become worse with some of your illnesses. YouTube was a good idea, and I hope it will help. If you ever feel sick or have symptoms of something, see if you can see the doctor on your own. Maybe have another relative help you with it. If you are still in school, talk to the school nurse about it, If it's serious, she could call your mom about it, and it would prove you aren't faking anything. Hope this helps. Good luck!