The actor returns to The Dr. Oz Show Monday
Credit: Source: Dr Oz Instagram

Charlie Sheen is continuing to open up about his struggles on The Dr. Oz Show.

In a preview for Monday’s episode, Sheen, 50, tells Dr. Mehmet Oz that certain lifestyle choices have triggered “manic behavior” from him in the past.

“Manic behavior is usually in the throes of deep partying. Deep substance abuse and drinking. It doesn’t really happen when I’m not doing that,” Sheen says. “It has never really reared its head. It’s interesting how I answered that question. I’ve been ‘described’ or ‘diagnosed’ by enough people that I guess at some point you have to take a look at it if it keeps walking like a duck.”

Sheen appeared on two episodes of Dr. Oz earlier this week, where he disclosed he had temporarily stopped taking his HIV meds to seek alternative treatment from Dr. Sam Chachoua in Mexico. However, Sheen quickly discovered the amount of HIV detectible in his blood had risen and the alternative treatments had failed. He has since resumed taking his HIV meds.

“Just to be clear, Charlie put his life at risk for a doctor who claimed to have a cure for HIV. When it didn’t work he immediately went back on his medication,” his manager Mark Burg previously to PEOPLE.

Sheen returns to Dr. Oz Monday (check local listings).