I know the Spell Check has changed a bit, but now....for some reason, whenever I go to use it, it mainly only "checks" the words that I KNOW AREN'T misspelled

Sometimes the ones that I know are probably spelled incorrectly, DO get checked, but the "suggestion" of the correct spelling the word that the Spell Check gives you is COMPLETELY off - and there is usually only ONE suggestion, instead of a whole list of them like there used to be (I hope all that made sense lol). Am I the only one that has noticed this?? And is there anything that can be done to fix it?