I have a health concern about pms?

a couple of days before im due I feel really foggy and can think straight, I am forgetful and have trouble doing my work which involves constant ysis and a lot of math. It takes me twice as long to finish up problems making my day even longer. Is this normal because im at my wits end with all these pms symptoms I get irritable, back hurts, more tired than usual, emotional, bloated all over lol and now I cant think :((