Oh my goodness, YES!!! I get that too. It's a nightmare, I'm always saying to my partner 'I can't tell what you are saying'. Must drive him crazy - I know it drives me mad. I do have tinnitus but this is an additional thing. I guess as someone else said maybe get hearing checked but if I understand you correctly and it's the same as I have, it seems to be more about processing what is being said to you. It's very odd, that's all I know.
Take care and I hope things improve.