I get more colds now. But I got serious stuff as a teen. Like DarkMavis, I constantly got strep throat, laryngitis, etc... at least once a year. I grew up in California, and I think mold and mildew have something to do with it. I also had a ton of allergies there. For example, I was tested in my early 20's for allergies, found out I was highly allergic to eucalyptus... guess what trees I grew up surrounded by?
In Portland, there is still a fair amount of mold and mildew, it's wet up here a lot, so that's expected... I get colds... but I've been doing pretty good. I just need to be careful around sidewalks... they jump up and make me trip.