Get a medical wrist brace and wear it as much as you can. I don't want to be Jeromeless, even if you growl at me. (:
P.S. melo, Jerome needs you! Our knowledge has surpassed our wisdom. -Charu Saxena.
take care j, try reversing the stress habit-positions, pulling on the fingers to open the palms and stretch the knucklejoints so to give a chance for the synovial fluid to enter and bathe the whole joint.
get a new mouse too, i like the logitec wireless for ergonomics, but any variety in size and shape would help.
repetitive stress is a bastard, so easy to fall into, and so sneakily incremental.
get deep massage in the forearm and palms, avoiding the wrist itself until the condition is repaired. ~"When an inner situation is not made conscious, it appears outside as fate." Karl Jung~