Hi, Welcome to Health care magic forum.
As you describe, it appears to be the
arthritis, of the metacarpo phalengeal joints.
I advise you to consult an orthopedic surgeon for diagnosis and treatment .
I usually prescribe to my patient with such symptoms injections of
vitamin B1,6,and 12 for10 consecutive days, and then periodically.
protein supplements, calcium, multivitamins,
diclofenac, and
paracetamol.
Avoid taking potato, other tubers, tomato, egg, chicken, and sea foods.
Wishing for a quick and complete recovery. Thank you.