Infantile spasms. I'm reading that it's a pretty bad thing to have. Is that true?

Often very serious. Here's an excellent link with solid information: http://www.Crazyforcody.Com/infantile-spasms-info-mainmenu-5.Html often, though not invariably, serious conditions such as seizures that start early in life have a more serious longterm prognosis than those that start later, after the brain is more fully developed.