Don't be worried about the doctors apt. it should be something you need to check out. I have diabetes running in my family too.
Usually diabetics do not have much problems with their legs. It starts in their feet. These are the symptoms:
Loss of feeling in feet.
Foot sores that do not heal
Numbness, tingling or burning sensation in feet
By the way looking at your post date you should have been to the doctors by know. What was the diagnosis?
Regards,
- Dave B