Weird Lower Back Pain

Hello.
I’ve been feeling this weird pain in my lower back. Well, it’s not really a pain but more of a slight ‘clicking’ sensation right in the middle of my back. It doesn’t hurt when it clicks, it just feels like there are two things rubbing together. It’s been going on for 3 weeks and I don’t recall anything happening in particular that would cause this.

I am planning to see a chiro but wanted to see if anybody else has had a similar situation.

If you were to lay on the ground and alternately kick your legs up, do you feel it again? Or if you were standing straight up and you alternately kicked your legs up do you feel it again?