Thanks for the detailed information.
Your symptoms should be looked for the following;
1) Rheumatoid arthritis
4) Ankylosing spondylitis
Following blood work would be warranted, if not yet done (these tests tell about the immune mediated arthritis):
Anti-SSA (Ro) or Anti-SSB (La)
HLA B 27
Thyroid function tests
Your blood sugar was elevated and should be further investigated by;
1) Glycosylated hemoglobin; this tells about the average blood sugar of last three months.
2) Glucose tolerance test
Diabetes and immune mediated arthritis cause nerve affections, which is called as NEUROPATHY. Your symptoms aggravation especially after the injury can be due to the primary disease process as well as due to neuropathy. The specialist to consult would be rheumatologist. Your primary care physician should meanwhile get a blood estimation of vitamin B12 which also causes neuropathy and a DEXA scan. DEXA is a very specific test for osteoporosis and tells about it's extent, so depending on the severity, aggressive treatment can be done. Osteoporosis can again be an aggravating factor in your case, for all these symptoms.
Please feel free for your follow up questions.