I don't think you're expecting too much, but on the flip side, maybe she doesn't realize you could actually choose to control your behavior if she did inform you. In that case, pointing out your weird mannerisms wouldn't be helpful, it would just make you feel embarrassed and socially anxious. Or, she may assume you are aware of your own mood shifts and behavior - if it's really dramatic, it's possible she just doesn't comprehend how you wouldn't be aware. I would just talk to her and explain that you have trouble in the moment identifying what's going on, and you would find it helpful if she shared her observations with you. Are you positive she doesn't tell you? If you're manic and having racing thoughts, are you really able to listen and take in information? Just wondering. Is there anything you can do if she does tell you?

If she's not good at helping you become aware of when you're manic and/or psychotic, you can probably develop some tools to help yourself identify those times. Even if you only know that you were having an episode after the fact, you could try to come up with a list of symptoms and behaviors that you experienced. Then you could make going over the list every day a habit. If you notice you're starting to exhibit the symptoms you usually do during an episode, you'll know things aren't fine.