Uh, after reading your replies, I must say I'm really lucky person :V
I've never had some serious disease, never had mumps, measles, nothing like that (however this might be a little bit bad, because afaik getting them when adult is more problematic). I got some flus, but they weren't anything serious. I've never broken a bone. I've only damaged my hands (a bandage for some days and it was okay). The only serious thing was quite big cut on my knee after falling from a bike. I had it all bandaged for some good time, I couldn't do any activities and I had some problems with walking.
The only bad thing about my health are teeth. I've had thousands of problems with them. However right now they're all okay (after maaaany visits to dentist) and I really care about them, because I don't ever want problems to come back ;V