Did you go down the 22 flights?
I work in a 10-storey building and go into stair climbing spurts where I'll get out there and climb, climb, climb at different times throughout the day. Up and down. The DOMS from going down hurts much worse than the DOMS from going up!
Last February a few of us did a February 500 where we climbed 500 flights of stairs (20 stairs in a flight) in February. I did it again in March! And then we shutdown for 4 months and I haven't gotten back into a rhythm since we've been back yet.
But since I work on the 2nd floor, I always do 4 flights at least.
Today I did 12 flights.