I was fired after a NC state inspection and I was suppost to be covered under the NC right to inspection law

I confronted a co-worker for false documentation and I was brought under fire. I was told not to be a grumpy old man, my sick time was denied...etc. After my claim was not recognized as being a valid reason for my confronting the co-worker. I later contacted the NC DHHS and they conducted a investigation. I was then fired 10days later.