glucometers themselves are cheap but the test strips are usually stupidly expensive if you have to use them every day and don't have insurance coverage. mine are about a buck apiece.
but that's not a bad idea to check if you're worried. if type 2 runs in your family you can start heading it off at the pass right now before you wake up with a fasting glucose of 270 like i did when i was diagnosed. it can take some lifestyle changes, but nothing too earth-shattering. giving up sugar soda made a *huge* difference to me right away. i still eat things with sugar in them, but not on a daily basis anymore, and now it's looking like my sugar trends are mostly staying in the well-managed diabetic range. far less candy and things like that, keeping an eye out on the junk. celery with peanut butter is my latest snack, i eat a fair amount of that. it's cheap and pretty filling for a quick snack. i don't really work out much at all, and spend too much time in front of the computer. i was walking a lot but since i hurt my back less so, though i reckon hobbling with the cane takes just as much energy over a shorter distance, eheh. being in school helps.
but yeah, holy cow, chromium really seems to work for me. maybe try it yourself in conjunction with some minor dietary modifications and you can keep yourself clear of an official diagnosis?