Jack Osbourne Diagnosed with Multiple Sclerosis

People reported Sunday that Jack Osbourne, reality TV star and son of Black Sabbath frontman Ozzy Osbourne, has been diagnosed with multiple sclerosis.

The diagnosis comes after Osbourne, 26, underwent tests after losing nearly 60% of the vision in his right eye earlier this year. The news also comes only two weeks after Osbourne’s fiancé Lisa Stelly gave birth to their first child, a daughter named Pearl.

“I was just angry and frustrated and kept thinking, ‘Why now?’” Osbourne told People. “I’ve got a family and that’s what’s supposed to be the most important thing.”

Multiple sclerosis, also known as MS, is a degenerative disease that affects the spinal cord and can impair vision, muscle control, strength, feeling, balance and thinking.

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