I think I know what I can call my present frame of mind : malaise.

Merriam-Webster defines as
Etymology: French malaise, from Old French, from mal- + aise comfort — more at ease
Date: circa 1768
1 : an indefinite feeling of debility or lack of health often indicative of or accompanying the onset of an illness
2 : a vague sense of mental or moral ill-being

Some would call it , the “ I cannot wait for the end of summer to be over” blues.  I know fall is coming. Time to plant, remodel and basically go outside without melting.