No, but her mother, Anne Rowling, succumbed to the disease in 1990; that's why - pre-April 2009 - she supported the Scotland Multiple Sclerosis Society.
Her mum suffered from MS, also known as Multiple Sclerosis
Her mother had multiple sclerosis.
JK Rowling's mother died on December 30th, 1990.
Peter James Rowling and Anne Rowling (née Volant) are JK Rowling's parents.
JK Rowling reports that she is not a pro with the computer, so she only uses it to write books on. JK Rowling does not have an email
JK Rowling attended Wyedean School and College.
The Kensington house of JK Rowling is located in London, England.
JK Rowling is an author. She is the author of the Harry Potter series of books.
No
Yes, J.K. Rowling's father, Peter James Rowling, is still alive.
One of them was definitely the death of her mother, from multiple sclerosis. It influenced some of the more morbid aspects of Harry Potter, and made JK include the details of Harry's parent's deaths and how he felt, because she knew how it felt herself.
Seeing as nothing has come up on the news explaining her death, I'm pretty sure she's still alive.