Why now?

So, the other question that comes to mind is why now?  What's different?  While working on my walking, I started having pains in my legs, down the outside of the calf.  I ultimately decided my shoes were possibly to blame and decided I needed some help getting some new shoes.  I went to a store called Off'n Running in Greensboro to get some help fitting my shoes.  Now, please understand the courage I had to work up just to go into a running store at my size and ask for help.  I've got to give props to the store and the guy who helped me.  He was kind and professional and never once made me feel like I shouldn't have been looking for shoes there.  What I learned that day is that instead of pronating my feet, like most people do, I supinate and walk on the outside edges of my feet.  Because I had high arches, I've always looked for shoes with a big arch support.  By doing this, I was pushing my feet out even further to the side, causing an excessive stretch on the muscles and causing the pain.  We went through a variety of shoes and I ended up with a Brooks Dyad 7 shoe.  It's probably the most comfortable pair of tennis shoes I've had in years.  So, what does all of this have to do with starting Paleo?  As part of the process to figure out what kind of shoes I needed, I walked to the front of the store and back and the guy working there videotaped me.  We were looking at my walking pattern, which is seriously messed up.  Instead of bending my knees and pushing off like a typical gait pattern, I use a very atypical pattern that is almost like I'm ice skating or gliding.  My feet are turned outward (which I actually already knew).  When I watched myself walking that day, I knew that it was time.  It's strange how you know that there's a problem, but then one day, you see something in a picture, a video, the mirror that gives you a wake up call.  You'd think that my high blood pressure and asthma would have been enough to kick me in the butt, but no, it was watching how my body moved when I walked and how much dysfunction there was there.  So, that's my story...how about you?  what's inspired you to make healthy changes?