Is this OCD or OCPD , or what gives???? Obsessive?

Question by Dan M: Is this OCD or OCPD , or what gives???? Obsessive?
Okay, so for as long as I can remember, I've been completely obsessed with any given thing at one time, and then not so much anymore. Let me give you a few examples.
I got interested in salt water fish tanks, I could not stop researching, posting on forums, reading anything that I could get to, to learn more about the subject. I would dream nightly of freaking fish tanks, and wake up in the middle of the night just to

google blackberry maps ...