I've always thought of myself as just having an addictive personality (with no substance abuse), but now I wonder.
I'll suddenly get obsessed with something random that I've never had any interest in before, spend time every day reading about it, looking at pictures, end up spending a lot of time and money on it, and then eventually lose all interest and move onto the next obsession. My father is the same way. I think my brain latches onto these things to distract me from the real-life practical issues I'm reluctant to tackle.
But my compulsion to do these things does not come from anxiety, but from pleasure. Thinking about whatever my obsession is at the time makes me feel good, and I give in and buy/do whatever it is because I can't resist, not because I'm afraid something bad will happen.
So might this fit under the umbrella of OCD, even though there's no anxiety involved?