What Causes Raw Feeling On Sole Of Foot, Toe Pain And Bruised Feeling?

I have seen many Dr's at this point have had a MRI an EMG seen a podiatrist foot surgeon an a neurologist back surgeon, internal medicine Dr. my problem is the following: My feet at all times on the bottom feel sore raw but look fine i will get sharp pains in my toes lasting only a sec or so goes away if i squeeze my toes together, they itch at times when i try to sleep, the bottom of the pad of my feet both feel bruised at all times when i walk on them, the outer Rt foot on top where the small bones are at times will feel as if they are broken cant bear weight will come on for no reason and go away a week or so later I have been treated for gout take allopurinol but have not had a uric acid level test for 4 months sense they started me on that, either way it does not take any of these symptoms away when the outer foot problem happens i have to put it in a pressure boot cast to even begin to bear weight no one knows whats wrong with me the EMG and MRI show no nerve damage, no past injuries, no old breaks or fractures or scaring tissue, no arthritis no bursitis so what is wrong with me and what do i do? I am a nurse and have had to be on PLA for 3 months and will have to go back to work soon standing walking and i just cant bear it what can i do?