I had seasonal allergies well into my early 20s. They come and go. I got gestational diabetes during my first pregnancy. I was non-diabectic afterward, but again got gestational after my second pregancy. Looks like its sticking now. It does run in my family. My grandmother, my two uncles and my mother all have type 2 diabetes. My 2 aunts and 1 uncle do not have diabetes. They all got it after they were 50 so some of it is environmental/habit factors. However, we probably have some type of tendency as well. My mother developed high blood pressure after 60.

My father is relatively healthy considering he smoked and drank for much of his life. He did stop drink 15 years ago. He was diagnosed with high blood pressure around 60, and he had a "stroke" like episode at 68. He is still with us, though does suffer memory issues.