Doctor's appointment today and I have to go to this one alone. I'm nervous because I have a glucose…

Doctor's appointment today and I have to go to this one alone. I'm nervous because I have a glucose test and I have to try to explain my doctor what I am 98% sure has been going on with my ligaments. I know they hate people who self diagnose but I never complain unless I'm really in pain. Hopefully they don't blow me off.