How much did you smoke before then?
What's your body type?
How often do you exercise?

Most likely, you're fine. Unless you're an overweight, heavy smoker who never exercises, that is. In some states, like California, the doctor can't talk about (and will most of the time not even test for) marijuana in front of your parents if you are over the age of 15. I know that last sentence doesn't make very much sense, but it's Saint Patrick's Day and I've been drinking. Anyhoo, back to what I was saying. Most likely, you're good.