Dampier experienced the symptoms while warming up before the Mavericks' win over the Detroit Pistons and was transported to the hospital in an ambulance. He stayed overnight in the hospital and sat out eight games while doctors ran a series of medical tests.
Dampier and the Mavericks had declined to discuss any specifics about the condition until Wednesday night.
"Obviously, I'm a lot better than I was," Dampier said during an interview on the ESPN 103.3 postgame show after Wednesday's win over the New Jersey Nets. "We ran some tests just to make sure everything was OK. I just had a little numbness in my arm, but it's a lot better now. I haven't had any problems since and hopefully don't have those problems again."
Dampier had 18 points and 11 rebounds in the victory over the Nets, his second game since doctors cleared him to return.
Tim MacMahon covers the Mavericks for ESPNDallas.com. E-mail him at firstname.lastname@example.org.