The comedian, 60, revealed on Monday that she had been diagnosed with lung cancer as she prepared to go into surgery to have the affected area removed.

And the star returned to her Twitter account to post an update, discussing how coming off painkillers reminded her of her previous issues with narcotics.

“To be honest, this cancer surgery was a little more than I had anticipated,” she wrote. “Tonight will be my first night without any narcotic pain killers. Hello Tylenol, my new best friend!”

Recalling a dark time in her life last year, Griffin went on: “The last time I was in a hospital was in June 2020 when I tried to take my life and overdosed on prescription pills.

“With over a year clean and drug free, I now know I can do this and anything I want without those devil pills. Y’know what? I fear drugs and addiction more than I fear cancer. So, I think I’ll be ok.”

In announcing her diagnosis earlier this week, Griffin wrote on Twitter: “I’ve got to tell you guys something. I have cancer. I’m about to go into surgery to have half of my left lung removed. Yes, I have lung cancer even though I’ve never smoked!”

“The doctors are very optimistic as it is stage one and contained to my left lung,” she went on. “Hopefully no chemo or radiation after this and I should have normal function with my breathing. I should be up and running around as usual in a month or less.

“It’s been a helluva 4 years, trying to get back to work, making you guys laugh and entertaining you, but I’m gonna be just fine. Of course I am fully vaccinated for Covid. The consequences for being unvaccinated would have been even more serious. Please stay up to date on your medical check ups. It’ll save your life.”

On Tuesday, she thanked well-wishers for their support, while also sharing a photo of her sobriety keychain.

“Wow! I’m so grateful for all the love you guys are sending me,’ Griffin wrote. “My cancer surgery went well yesterday. Phew. I was very nervous about opening up on @Nightline re my suicidal ideations and my prescription pill addiction. This keychain means the world to me. One day at a time.”

Griffin discussed her diagnosis in further depth during an interview with Juju Chang on ABC News’ Nightline, which aired on Monday night.

The star, who also spoke about her addiction and suicidal thoughts, admitted that she was “still a little bit in shock” after getting the news in recent weeks.

She said: “Really just days ago—like, I think two weeks ago—I was diagnosed with cancer. As a friend of mine had said, ‘How many kicks in the nuts can you take?’ My nuts are pretty strong, but it’s a challenge.

“I was definitely in shock. I’m still a little bit in shock—not denial, but once a day I’ll just turn to like, nobody next to me and go, ‘Can you believe this s***? Is this a b**** or what?’”

If you have thoughts of suicide, confidential help is available for free at the National Suicide Prevention Lifeline. Call 1-800-273-8255. The line is available 24 hours every day.