I agree with what everyone else said. You should see a doctor if you really want to find out what's going on.
Just based on my experience, it doesn't sound like bipolar. It sounds like you're reacting to situations around you. At least with me, the mood/energy (high or low ) is already in place regardless of what's going on around me. Sure, I react to stuff, but the mood is already in place.
Of course there are triggers, but those usually set off a week or two week long mood. (Rapid cycling here.)
Good luck.