Hello,, Indeed, it is a very good description of your condition, and I would definitely suggest that you get some basic tests done and start treatment, as it is a very strong possibility that you have Rheumatoid artheritis.
The locking painful small joints of the left hand together with the wrist and elbow are very characteristic, with morning pains and stiffness
There is very little to get scared about this condition as very good new drugs are available. It is very rare to see crippling deformities due to Rh Artheritis.
The follow - up schedule of the disease has been widely accepted based upon the disease activity signs, you could refer to the DAS score ( http://www.4s-dawn.com/DAS28/ ) which will help you get the confidence to treat better and remain cheerful
On the drugs to be used you need to be reviewed with the lab reports and X-rays.
With best wishes