I've noticed, to my surprise, that a pair of my old 29 jeans from Walmart are tight. I got these back in August and they fit pretty much fine then. The weird part about this is that my 28 jeans and shorts both fit well ... they're smaller then the Walmart 29s.

I'm wondering what's up with them or me. They're not my favorite pair of jeans and they were from Walmart, so it's not like they look good, but I'm curious as to why this. Primal has changed my body shape a lot since the summer ... I'm now leaner, stronger, and I actually have muscles in my arm/upper chest area.

Is it a matter of my strength training changing my body shape to where those particular jeans don't work as well anymore? Is it something else?

I'm just curious for thoughts and I'm wondering if anyone else has experienced this.