My doctor says I have arthitis in my spine. Possibly arthritis in my knee- because I had fluid drain

ed out of the side of my knee. Possibly arthritis in my hands. My primary doctor thinks that I might have osteoarthritis. My doctor says I have raynaud's in my fingers. In cold weather my fingers get very numb. They (my fingers) lose blood and sometimes the blood dosen't return to my fingers not until about two hours. My fingers go throuh extremely alot of pain. I also have a pinched nerve in my neck, and a rotator cuff problem.  I've had nerve conduction studies done. The first two times revealed nerve damage in my arms. The third time revealed not so much damage, but I don't see how that could be, since I didn't have any treatment or taken any supplements. I've had blood tests done, and revealed my b-12 was fine and folic acid was fine was fine. One doctor said you might have carpal tunnel, and another doctor said you might not. On one of my tests, it revealed degenerative disc disease. I do have digestive conditions, ie; acid refluf disease, gastritis. I've had Helicobacter pylori, and then I had another test done, and no pylori. I've had candida in my blood, but had another test done, and it  revealed no candida in my blood, but many in my stool. One test showed my gasintestinal tract was very irritated. I'm assuming my pH balance is upset, and the friendly bacteria in my stomach is upset also. I don't think my stomach conditions are related to my other conditions. I  have a couple of questions if I can ask please. Can arthritis cause nerve damage throuhout my body, becaue whenever I hit or even bump any part of my body it hurts realy bad. Also can raynaud's cause nerve damage. I realy have to find the major cause, because I've heard a person can get paralyzed from nerve damage. Is this true? I'm realy scared. I appreaciate it. Thankyou so much.