Hi,
Welcome to the forum.I am glad to help you out. In view of the enlarged glands at multiple sites, it makes sense to do a fine needle aspiration or a biopsy from one of the glands and send the same for histopathological examination.
In view of the night sweats, joint pains and you being a diabetic, there are 2 possibilities â the first being tuberculosis and secondly a lymphoma (tumor of the lymph nodes).
The biopsy will give a definitive answer for the same. The treatment will depend upon the underlying cause. Iâll suggest consulting a physician for the same. I sincerely hope that helps Take care.