Hi TY and welcome to the Chronic Pain forum. This is a great family of people you've joined here and we will do everything we can to help you regain your life.
The first thing that came to mind is fibromyalgia or one of the similar disorders. Basically it's muscle pain with no known cause. The pain can be intense or slight of vary between the two. The diagnosis is often made by a rheumatologist but a good PCP can give you a yes or no too.
When you find yourself not getting anywhere with the medical people you've seen the next suggestion is to head to the top! Find the closest university/teaching hospital to you and get there ASAP. These folks have clinics to treat people like you and me. They can handle issues of money or lack of it. And best of all...when the going gets tough they won't send you away without an answer. This is where the research is done and they won't give up. Sometimes you can get in on a research study or maybe a medicinal trial...who knows. But if I were in your position I'd give the closest one a call...even if it's a very long drive.
How do you find these??? At the top of the page is the topic Chronic Pain 101. In there is a link to a worldwide list of university/teaching hospital and clinics. It doesn't have every single one but enough for you to likely find one. Here's the link so you don't have to search right now.en.wikipedia.org/wiki/List_of_university_hospitals
And since you listed the state where you live on your profile, here are two teaching hospitals
in Maryland. These are top notch centers! I hope something here can help you!
University of Maryland Medical Center, Baltimoreen.wikipedia.org/wiki/University_of_Maryland_Medical_Center
Johns Hopkins Hospital, Baltimoreen.wikipedia.org/wiki/Johns_Hopkins_Hospital
Moderator on the Fibromyalgia and Chronic Pain forums
Daily Donnybrook: Fibromyalgia, Insulin Dependent Diabetes. Ulcerative Colitis, Rare form of Dermatitis, Collapsed Disk, Osteoarthritis (especially in right hand and neck) and a couple of other adjunct agitations.
Use the talents you possess, for the woods would be very silent if no birds sang except the best.