I had symptoms of nausea, feeling faint etc in the months before I was diagnosed as diabetic. YOU have no time to waste.
1) get cracking on a diabetes style diet - plenty of info on this site - but basically cut right down on all sugars - including fruit sugars - trust me - in your situation - orange juice is unhealthy.
2) Get exercising - nothing strenuous - most T2 on here advocate walking for maybe 30-40 minutes a day - if necessary - build up to it - but make it a daily habit
3) start learning from this site - look at what others do and join in.
I'm not a doctor.
Qualification: T2 Oct 15. Metformin, diet and exercise. I treadmill and stationary bike for 40 mins every morning and in the evening I do the same again or go to the gym (powerlifting - it's my thing) 6 stone lost and 10 inches off the waisteline.
Downside: I can walk into a room and smell sugar and chocolate in the same way a non smoker can smell smoke, but I don't care .....most of the time.
Good luck - it's a journey, but there's plenty of good company