Accursed?

It's been a rather dismal week. Without going into too much details (which would probably depress me to see in writing), the following events have transpired. This week, I...
-smashed my knee on a rock while trying to help a scuba diving customer exit the beach when he shouldn't have
-lost a mooring ball in the depths of the harbor when in fact I was supposed to be doing the relatively simple job of replacing the chain
-thought I experienced my first scuba diving casualty, only to find out that the guy I was guiding had separated and decided to swim the whole rest of the way back to the beach without me. I thought he was dead on the bottom somewhere.
-woke up yesterday with the beginnings of a cold (which shouldn't happen, because I'm on a boat or underwater most days of the week!)
-woke up this morning with a full fledged cold, but still had to get up at 5:45am, put on my cold and wet wetsuit, and work as divemaster on a dive boat.
-and finally, I drove straight through a red light on a main street here in Monterey while in some kind of daze, but managed not to cause an accident. I was SO lucky not to hurt anyone else or myself, when it could have easily gone another way entirely.

After all this has transpired, I've found myself wondering if there's some cosmic lesson that I'm supposed to learn from all of this. Then, my good friend John-Paul provided a different perspective. He told me the story of a seemingly healthy middle aged man in the hospital he works at who has genetic health problems which, in all honesty, should have killed him long ago. Instead, the man has been bedridden for a year following a heart transplant. Despite all this, the man apparently maintains a cheerful disposition and routinely expresses his gratitude for the good things in his life. After that, what excuse do I have to bitch? A bum knee, head cold, nearly-dead customer...bah!