AIO Am I actually showing signs of bipolar disorder or am I overreacting?

I will preface this with saying that my mother is diagnosed as bipolar. I'm diagnosed with depression and anxiety and suspect I may be autistic (not interested in arguing about this). I used to have huge outbursts/meltdowns until I went to therapy and got on medication. I felt neutral mood-wise for so long but recently I've started feeling happy again. I'll be very happy for several days and then have 1 or 2 days where I'm very depressed. Honestly, I think the low moods are worth it. I'm so happy to not just be neutral all the time anymore. However, my mom thinks this is signs of bipolar disorder. My question is, are these high and low moods normal for other people or should I talk to my psychiatrist about it? Every single person in my family and all my friends are mentally ill in some way so I don't have anyone else to get an opinion on this. Thank you for your time, I hope you have a good day.