Back when I drank/was trying to quit drinking I would do that too. I did wind up eventually getting a bipolar diagnosis but that wasn't until years later when I was sober.
Early sobriety from drinking does a number on your behavior and moods- I think it takes a bit for the brain to settle down and adjust.
It could quite possibly be mania but I think you would have to have several other symptoms along with the cleaning.
Major congrats on kicking the booze!