A few weeks ago, after Senator Susan Collins shoveled some ceremonial dirt to break ground on a new firehouse in Sanford, I asked her at age 73 about her health. She pointed to her streak of nearly 10,000 consecutive votes, not one sick day in 30 years. >> Anyone who follows me around the state uh would also not have any questions about that.But if you've watched Collins over the years, you may have noticed a slight trembling in her hands and her head. Now, for the first time, the senator is publicly descri ...