have you ever eaten weed? some people are highly sensitive to edibles and get a panic reaction. other people feel absolutely nothing. also the preparation can make a difference.
since edible weed takes a while to kick in, i would advise against eating it if you plan on smoking it. usually you just get incredibly high and can't tell the eaten buzz from the smoked buzz. just smoking will allow you to wait a couple minutes between hits and stop before you overshoot your comfort range.