I would definitely set up a visit with your primary care doctor
to talk about this issue, especially since it seems to have been going on for a while and is not getting better. Your doctor can perform a physical exam and narrow down the possible causes of your pain and also suggest treatments.
One potential cause here is carpal tunnel syndrome
, which is a condition caused by inflammation in the nerves in the wrist due to repetitive motion and strain. With carpal tunnel syndrome, the pain, weakness, and (sometimes) numbness
and tingling tend to be worse on the thumb side of the hand, just as you are describing. Usually, the condition can be treated with regular doses of anti inflammatory medications, as prescribed by your doctor, together with splinting of the wrists (especially at night) and avoidance of the the activities that bring out the pain (for example, typing at a computer keyboard).
Another condition which can also cause pain in this area of the wrist is tendonitis at the base of the thumb, which is caused by the same sorts of things that cause carpal tunnel syndrome. Typically tendonitis is also treated with splinting, physical therapy, and anti inflammatory medications.
Please talk to your doctor!