Noel Gallagher was told he would "virtually drop dead" if he came off medication.
The 47-year-old rocker - who has daughter Anais, 15, from his marriage to Meg Matthews and sons Donovan, seven, and Sonny, four, with wife Sara MacDonald - had "awful" health problems in 2013 and among his many ailments was a mystery condition which left him taking tablets that made him feel even worse.
He said: "It was awful. I had glandular fever, then I went for my annual health check-up. And honest to God I felt all right when I went in, and the doctor made me feel like I was about to drop dead in the street when I came out.
"I won't go into it, but I [also] got tinnitus in my ear, and I pulled two muscles in the back of my hand. Not from playing guitar; I cracked it on the side of something, and I bashed round the casing of the nerves. It was horrible. I couldn't even put my hand in my pocket.
"Then I went on holiday with the kids. And I was getting out of a swimming pool with one of them in my hand and did my back in.
"Then my doctor put me on these tablets - I won't tell you what for [and] told me that if I didn't take them I would virtually drop dead. I was taking them for months and they made me feel awful. So I quit taking them and I feel great again. But I was thinking, the health game's a racket."
Noel credits working on his forthcoming new album 'Chasing Yesterday' for helping get him back to full health.
He told the Telegraph magazine: "So that was a terrible year. But then again, as soon as I got back to work - I started this album on January 6 2014 - that took my mind off it, and I was all right."