Diabetes successfully managed(?) but now thirsty & peeing a lot

Hi /r/diabetes,

I'm type 2 for maybe 10 years, managed by drugs. My blood metrics are OK (a1c is around 6-7). However last 2-3 weeks, I'm feeling more thirsty and peeing a lot. Getting up often at night to urinate too.

Can I get some advice? Could the drugs be not working all of a sudden? I can go to my Dr but what would the Dr do?

I am not on a drug plan so swapping drugs around is possible but expensive if I have to play musical chairs with trying out other drugs.

Or is diet/weight a problem? (I need to lose a few pounds). Could this be making trouble?

I realize this is maybe an open ended question that may not have an answer but maybe I can get some ideas for the next step. Not asking for a diagnosis, just friendly advice.

Thanks