Actor/comedian Nick Cannon attends a benefit for the United Way of New York City and the Shawn Carter Foundation at Carnegie Hall on Feb. 7, 2012 in New York City

*Nick Cannon was hospitalized for the fourth time in three months last week after suffering pain in his chest and right arm, he told listeners of his New York radio show today.

The entertainer was recently diagnosed with acute kidney failure after falling ill during a vacation with his wife Mariah Carey and twin children Moroccan and Monroe in Aspen. He subsequently underwent surgery in Los Angeles and returned for further treatment in January.

But Cannon had to seek doctors’ help again last Friday. This time, he was diagnosed with blood clots in his lungs and an enlarged ventricle in his heart.

He went back to work on Wednesday and decided to fill in his radio listeners Thursday morning.

Admitting it was “quite serious”, he explained, “I was trying to downplay it a lot, even in my own mind.

“I travel a lot. Anyone who flies a lot can be a victim to getting blood clots because it can start in your legs or your lower back (from sitting for an extended period of time). That, on top of my previous condition (kidney failure) made me more prone to (getting blood clots). I couldn’t sleep because I was in so much pain. I was having a lot of pain in my back.”

He said, “My doctor was saying that my work is going to kill me – and he’s not joking. I think part of the reason why my health did kind of deteriorate was because I wasn’t resting a lot and I was doing too much. I was overworking myself, working out too much.

“I always took a lot of pride in working so hard and never taking a day off. But I’m learning that it isn’t the wisest thing all the time, especially being a new father. Not only wanting to spend more time with my children, but wanting to be there for my children.”