Jack Osbourne has been diagnosed with multiple sclerosis.
In an interview with PEOPLE magazine, Jack describes how he felt upon hearing the news:
"I was just angry and frustrated and kept thinking, 'Why now?' I've got a family and that's what's supposed to be the most important thing."
The 26-year-old found out just two weeks after he and fiancé Lisa Stelly welcomed daughter Pearl Clementine.
MS is a disease that affects the brain and spinal cord, generally causing problems with muscle control and strength, vision, balance, feeling, and thinking.
Some people go through life experiencing minor problems, while others deal with more serious ones.