It doesn't really sound like bipolar. Bipolar mood episodes tend to last days/weeks/months. Episodes lasting days are a lot less common than episodes lasting weeks or months.

Moods that go up and down quickly throughout the day, especially ones that are caused by a trigger (sights, sounds, smells were mentioned in your post) are typically something else. This could be Borderline, but it could also be something like actual ADHD or maybe even something on the autistic spectrum.

Those are just ideas based on things that I've read. But if you're curious to know and want help with this, then you would be best served going to talk to a psychiatrist who actually knows the difference and could help work it out for you.