After years of sun worship caught up with Brooke Shields when she got some sobering news from her doctor recently. "I had a spot on my face. The doctor scraped it, and it turned out to be precancerous," Shields, 43, tells People "I was scared." The lipstick jungle actress had the spot removed and says she's doing "fine." But the cancer scare served as a wake-up call for a woman who "used to think it was the best thing in the world to be