Hi & Welcome to the forum,
I had headaches that started in my neck and shoulders for years. The doctors always told me they were tension headaches, but nothing helped. Now, I know it was Fibro. I also get dry mouth pretty bad from the meds and I've gained 65 lbs. over the last 4 years because of meds and also not moving and doing the things I used to. It seems I just don't have the energy or hurt too much to do anything.
Hang in there! Things will get better. I hope you get to feeling better. You can come and complain anytime you need to.
Hugs!! Margie