The outspoken 47-year-old contestant on NBC's "The Celebrity Apprentice" told People magazine that the subarachnoid hemorrhage "sounded like a handgun, like it literally popped."
"It made my mind go almost blank," he said. "My neck tensed up. I couldn't move my head at all."
Michaels said after he experienced the sensation, he began pacing his living room then asked his girlfriend, Kristi Gibson, to take him to the emergency room.
"I knew I was slurring my words, and I was like 'OK, this isn't a headache. There's something really bad happening,"' he said.
Michaels recalled asking an emergency room doctor if he was going to die, and if he had a chance to survive, he didn't want his two daughters, 9-year-old Raine Elizabeth and 5-year-old Jorja Bleu, "to see me in this condition."
Though doctors say Michaesl is "still very sick right now," he, is in stable condition and on his way to a full recovery.
"Mr. Michaels was indeed a lucky person, a very lucky person," Dr. Joseph Zabramski said during a press conference Tuesday at the Barrow Neurological Institute at St. Joseph's Hospital in Phoenix, where the rocker had been receiving treatment.
Zabramski said Michaels was discharged "recently" - less than two weeks after the April 21 brain hemorrhage - but said he could not give specific details of Michaels' release or ongoing treatment due to federal privacy laws.
"He's improving and I expect him to continue to improve," Zabramski said. "I really expect that he will fortunately make a 100 percent recovery. He's just one of those lucky people - 10 to 20 percent who make a complete recovery and can resume all of their normal activities."
Michaels was recovering from his April 12 emergency appendectomy at the at his Scottsdale, Ariz., home he shares with Gibson and their two daughters when he felt the severe headache.
He was admitted into a hospital April 22 and was later diagnosed with a subarachnoid hemorrhage, which causes bleeding in the fluid-filled spaces around the base of the brain.
Dr. Joseph Zabramski said at a Tuesday news conference that Michaels was expected to make a full recovery.
Michaels will receive therapy and will probably continue to suffer from severe pain for another seven to 10 days as blood pooled under his brain dissolves, said Zabramski, chief of cerebrovascular surgery at the Barrow Neurological Institute at St. Joseph's Hospital and Medical Center in Phoenix.
"I'm a believer it's a combination of will and good faith," Michaels said. "Will - and good medical attention - and faith. It just wasn't my time yet. I really believe that. If I had stayed on the couch for another hour, that probably would've done me in. In a weird way, God intervened: The appendicitis forced me to come home for a couple of days."
The magazine said Michaels moved to a physical therapy rehabilitation facility on April 30.
Michaels, one of the five stars remaining on the business-themed reality TV show "The Celebrity Apprentice," said he plans to make a "positive bucket list" and wants to "continue to rock the world, and I want to continue to love my family and be a good father."
Watch Michaels' doctor on his prognosis: