This Time I Really Did Hurt Myself, Badly

I went riding with a couple of guys from work on Tuesday. Feeling good, exercise at 7 am, cool weather, good times. The first time I went down it was nothing. Like a boxer that trips, not really a knockdown. The second time, I was riding in the 2nd position about two lengths back. We we're going pretty quick on a downhill, when the rider in front of me hits a pool of mud about 8 inches deep. His bike stops and he goes flying over the handle bars. With little time to react, I go left to avoid him, apply the brakes, hit mud, bike stops, I go flying over the handle bars leading with my left jaw. The muddy ground breaks the fall. It feels like I was sucker punched. Third guy rides up and sees the two of piled up. "WTF happened to you two?" First guy has some good cuts too. The last time I go down, and this is the one that mauled me, I'm in the third position, it's the last down hill before the ride ends. We're on service road. I'm riding furiously to catch up. My wheel catches a hole. My bike shakes violently, I almost recover, but I don't. Smash, boom, bang. Instantly, I know this is the worst wreck I've ever had. Pain. "Fuck!" Pain. No blood. Shoulder pain. and head pain. Everything seems to work. Jump on bike. Seat is in a new position (and later I will notice a huge gash several inches long with a depth reaching the plastic core). As I ride away, I see a white plastic thing float to the ground. that's a piece of my helmet. When I remember this later (the next day) and check my helmet, I see the shell is cracked with one giant indentation in the Styrofoam and several small ones. At home, as I prepare to shower before work, Ally says, what's that on your back, Daddy. Uh-oh. My back upper left shoulder is covered with road rash. I'd take pictures, but nobody likes looking at a hairy back. Sometime later that day I think, "so this is what a concussion feels like." Oh, and my neck hurts, must have landed on that too after the initial impact with my head and shoulders. Advil, motrin, Aleve. I'm piling it on. My shoulder is badly damaged. Can't really raise my arm above my shoulder. The next day, today, I feel much better than I thought I would, not great, but better than the day before. Tomorrow we're riding at 6:30 am.