Knees

My knees have plagued me off and on since age 16. It's been a while, but there have been extended periods when they've limited my riding. Recently they have been mostly solid as I've learned over the years how to take care of them. The past couple weeks have demonstrated once again how fragile they can be. Two weeks ago I enflamed them with some ill advised tromping all over Manhattan. The left one, always the weakest is still complaining. Yesterday while opening a can of spray paint my hand slipped and I slammed it into the inside of my right knee. Now that one is complaining as well. I need to really get on calming them both down as it's the height of the cycling season and I have really good fitness at this point.