I see you’re of the “sick days are to used” school of employment.
Yep! If you can’t carry them over ,use them. They are negotiated in your contract.If they are carried over they usually can cash them in at retirement at 1/3 per diem.If you have half a brain you use them.I retired with 198 sick days under my belt because my district had a much higher cash in rate than most.
BTW, What is or was your line of employment?