Warning rant

Today was a rough day today to say the least. Our clinic has been shortstaffed for God knows how long and today I had a provider I was working with go behind my back claiming I didn’t know how to do an a1c which isn’t true At all. We have a machine that reads the A1c and if the A1c is passed a certain level it says total a1c level too high test cancelled. For some reason this provider went behind my back and told on me to my supervisor. I got pulled into the office and was told that I needed additional training on this and to Have someone watch me. I tried to tell them my side of the story but of course they took the providers. Now for the next few days, I’m going to have to have somebody watch me do a1c testing which I’ve done perfectly well for years. Because of this one situation to me it seems a bit ridiculous that this has to happen. I feel like I am being singled out, targeted and micromanaged. Should I start looking for A different office or stick this out. Part of me just feels that I just want to quit altogether and take a break from the field. I am tired of constantly feeling exhausted, overworked and underpaid. I love what I do but something has to change. I do want to go into nursing but now I am having second thoughts. but now I am having second thoughts. Does anybody else feel this way? Has anybody else been in a similar situation? Let me know your thoughts.