Do you still feel some highs and lows while taking meds that work for you?

I'm new here and I thought all my life that I had depression but a therapist recently told me that she thought it was bipolar 2. I didn't end up staying with that therapist but I did take a mood disorder screening with a psychiatrist after that which determined it was a mood disorder. So I got put on a mood stabilizer a few months ago.

I thought it was helping until recently when I started feeling really low and kinda hypomanic I guess? So my question is do you still experience some mania and depression even while taking meds that work for you?