Three weeks ago, upon landing in Madrid, the pinky and ring finger of my left hand felt numb. I figured it was due to sleeping in a cramped pose during the flight.
The following week disabused me of that notion, as I developed pain in my deltoids, forearms, elbows, neck, and wrists. Around New Year, I stopped typing for five days.
Upon return to the US, I went to a doctor. He told me that I have blackberry thumb, tennis elbow, carpal tunnel, and tendinitis. I'm not sure why all of them appeared at the same time.
Part of the prescription involves cutting down on laptop and blackberry usage. A pity, as I used to enjoy lying in bed and typing emails to friends.