You have not seen any doctors since 1970 then? You might look for a specialist/doctor office willing to work with you on a monthly payment plan as well as applying for financial aid. Without getting proper clinical evaluation, the possibility of getting a proper diagnosis as to what you are experiencing is eliminated.
back in 1970 they didn't know about peripheral vascular disease, or have the technology for endocrinologiclal cause, they didn't know about fibromyalgia.
and I don't have the money to do the research today
Your doctors say it's neither bones or muscles, so I assume they tested to be able to tell you this definitely? Did they conduct a nerve conduction study, and EMG, check for an endocrinological cause, send you to a rheumatologist to check for fibromyalgia?
Did any doctor check the peripheral vascular system with a doppler study to see if your circulation is working properly in your legs? Peripheral vascular disease can be hereditary and I seem to remember reading it can strike even in one's teen years. If you have had a lipid panel that demonstrated high triglycerides, etc., you might strongly consider getting this ruled out.