It's not wasted but peri-menopause can drain us of any energies.
Depending on what type of work you are doing, is there an HR that U could talk with, R they taking on board a menopause person?
Have u had a recent blood test to see how your body might be, i.e. ?? low vitD levels, thyroid function, aneamia, blood sugar etc.? We have a thread: doing stupid things : U R not alone with the fuzzy head etc..
Browse round. Make notes ;-)