Hi Ceara
A hypo is when your blood sugar goes low, usually below 4. This is a result of missed matched medication (insulin or some type 2 tablets) to your carbohydrates/activity. If you're not on diabetes medication it shouldn't be something you need to worry about.
Hypers are when you're sugars are high, if you're on insulin they can be treated with correction doses but if you're not on medication it's more tricky to sort. You will probably be aiming for blood sugars between 4 and 7 but that is something you need to agree with your care team.
Have you been told to test your blood sugars, I know there's quite a debate within the medical community about type 2s testing. If you're not on medication then I assuming your team will be looking at you trying to control it through diet and exercise. There is a lot of good information online but you're right, you do need to be careful of the source! Diabetes UK's site is generally a good starting point. There's a lot of good reccomendations for books on this site and I'd reccomend that as a good starting point.