How long has it been like this for?...
Go to your GP may be a good idea if it worries you .. I have the same problem on my left hand and am seeing the specialist tomorrow as I have lots of other problems as well ..
but it could be any number of problems.. Carpal Tunnel Syndrome.or a pinched nerve in your back/neck..
Let the Gp help work it out if you are concerned and it doesn't go away on it's on.. Regards .. Belle NZ xxx
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A Friend!