Another couple of options ...
Some pharmacies will have occasional FREE HbA1c tests, which could give you an indication. Unfortunately, it seems from most reports that the pharmacy tests aren't quite as accurate as lab tests, but even so, there is a healthy range you should be in (most healthy adults are under 6% in this test), and if you're far outside it (my HbA1c at diagnosis was 12.1%, diagnosis is usually made around 6.5-7%), then you've got a good indication there's a problem... Ask a few pharmacists in your area if they offer this, and when.
Alternately if you have a friend that has diabetes, you can ask them if they would allow you to use their meter, a lancet and strip to do a self-test... (Any diabetic that tests can walk you through the procedure... I'd be happy to let a friend test, but that's ME. Everyone is different...) 2 hours after any high-carb meal you should be within normal range. If you're not, then you also have a good indication.
But do your best to see a physician and get some tests as soon as you're able.