In the past few days, Bret Michaels was rushed to a hospital after suffering a brain hemorrhage, underwent tests while remaining in critical but stable condition and found out he had a side effect that could lead to seizures. But there’s a good chance the rocker won’t remember any of it, an expert tells People.

“Most people (who suffer this type of brain hemorrhage) don’t remember most of their hospitalization — they have no recollection,” Dr. Melvin Field, director of the Florida Hospital Neuroscience Institute, tells the magazine.

Doctors usually “give patients some sedation so they don’t have pain, and that can kind of make it so they don’t remember too much,” says Field, adding that having blood in the brain can also cause some confusion.

Michaels will remain under the care of doctors.