You mentioned that you have been meditating more often?
It sounds to me like you are meditating, but not cycling the energy through you properly, and creating blockages. Since your right hand is most likely dominant, it may be that you are only focusing on channeling energy to that side, and neglecting the other.
My suggestion to you is to meditate, and cycle your energy. Work it up from your fingertipertipes(but in this case channeling from your stomach or toes might work best) throughout the rest of yoru body, and do not channel one side further than the other.
Sorry if my explanation is very disjointed, I'm typing from a mobile device. I suggest that you find a more indepth article on meditation techniques if my directions are difficult to follow.