Have Diabetes, Take Insulin (five Shots Per Day) BEEN Onefor

have diabetes, take insulin (five shots per day) BEEN onefor 20 years. when I try to get a diagnosis of my body pain am treated like I might be a seeker. I don't want drugs but answers. my legs are killing me, and my arms, and neck, some pain on ribs, under arms, pain burns on arms hands go numb, heel hurts pain is deep in tissue, the ligaments hurt. Cymbalta was finally added to my meds was a miracle, first relief for 2 years. but has stopped working, am experiencing memory loss and confusion. do I have ms, how do I find out, what kind of dr do I need to see. the diabetic specialist is not the one to treat this, they mostly ignore my complaint, am at wits end