Pissed at myself
I'm 31, and I have arthritis in my lower back.
THIRTY ONE YEARS OLD.
Mom's prophesy has come true: "You need to get up and move, or you'll have arthritis by the time you're 30." You were off by one, mom.
Can't really lay blame on anyone but myself here. I'm the one who decided sitting around like Jabba the Hut for the last decade was the way to go. Twenty six percent body fat, zero flexibility, and no core strength.
Sorry, this is my first "you'll have this for the rest of your life" moment.