The 57-year-old wrestling legend (real name: Terry Bollea) was taken Monday to the Morton Plant Hospital in Clearwater, Fla.
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Hogan, who recently appeared on Comedy Central's Roast of David Hasselhoff and starred on the reality series Hogan Knows Best, posted a twitvid of himself in the emergency room Monday, telling his fans: "My back went into a major spasm from hip all the way to the middle of my back — it just totally overwhelmed me."
On Tuesday, Hogan posted another twitvid saying he was feeling better and had several tests scheduled for the day.