I only gets worse with age
I started feeling aches and pains after 30 and they slowly crawled up to me.
In your case, I'd go see a chiropractor or massages to ease the muscles back to place. If you've taken a few falls in the past (maybe not bad ones) they are creeping up on you now. I generally go get my muscles snapped back in place the moment I feel the hint of pain coming on - then I'm good for a few months.