Seasonal shed, or did the meds stop working?

[djsquared]

Hey guys,

First time poster here. I am going to try to outline my situation with pics. I'm 28 years old. Noticed hair loss at 20.

At 21 started with LLLT and SLS free shampoos.
At 22, I stopped LLLT (waste of time and money). I said f*ck it.
At 24, I said never mind, and decided to start finesteride (Nov 2008 pics).
At 25, I added Rogaine.
At 27, I noticed it was really working. My crown was closing in and my hair was thicker all over (Feb 2011 pics).
At 27, I switched from generic Minoxidil liquid to the foam.
Two months ago I started applying Rogaine to my temples/hairline (I didn't know you can do that).
Just last month I decided to take new photos and I'm shocked to see I am regressing (Nov/Dec 2012 pics).
I do not know if it is a seasonal shed (something I just saw happens to others), or if the products stopped working and I am losing ground. Debating on throwing in the towel and buzzing or sticking it out.
Help!
Pics attached with Month and Year in the title. First pics are from Nov 2008 and span until now Dec 2012.