One thing I've always wondered, and I'm wondering in your case, is how much awareness we really have that what we're doing is harmful when we're manic. A lot of people guiltily overspend on hobbies and things that just sound good at the moment (when I was in college studying marketing, "buyers remorse" and cognitive dissonance as it applies to consumer psych were biggies). It sounds like you are into puffer fish (which are really cool...especially Mrs. Puff ...gotta know your SpongeBob), and I don't see why it's necessarily a problem to lust over a humongous tank. Certainly getting your car fixed is a necessity (wish a little extra money had floated in from my ex when my son's car needed $1700 of repairs lately...).

But yeah, maybe with the other stuff, maybe. I just know when I went through my last bad hypomanic/manic stage, I really just wasn't aware of my behavior until months into it when someone finally sat me down -- my boss, unfortunately -- and pointed it out. I was off my meds and way out of control. Also, it probably would need to be an ongoing change of mood, not just a couple of days -- we all have irritable days. Maybe it's just a trend to keep an eye on at this point?