Is it normal that i think about things and then later they happen?

I will be sitting there thinking of something and then later either it will happen or something about it will come on the radio or TV. Example - three days ago I watched an episode of Desperate Housewives where a man got a boil on his butt. The next dayI got one on my butt. :( If I think about it happening when I think about it, it won't happen. And not everything I think about happens. Sometimes I'll just be thinking, What is a rhodendron, next thing I know a documentary on them is on my TV. Are these just a ton of coincidences or what? I don't think I'm psychic, I can't make major things happen, just little things happen about once a day. I think coincidences, what's your opinion?