So far, it just sounds like you, like all of us are getting lots of pollen but your water is still generally OK. FC=4, CC=0, pH=7.4 and CYA=35.
Since CYA may be higher, I'd bump FC up to 6 for now (the high end of the FC range rather than the lower part), and if you need to shock it, raise it to 15.

For now, leave Tot Alk and Calcium alone. You may well not need to do anything once the pollen season passes.

Carl