Yes, if it continues much longer it's worth getting checked out. It's not worth sitting around worrying about. Seeing a Doc will give you reassurance and it may be ok.

That's exactly how my knee pain started years ago. I could ride my bike but couldn't sit or climb stairs. My diagnosis was Chondromalacia, was told the muscles needed to be stronger and was given exercises for the muscles around the kneecap. Note that newer theories are indicating problems in the hip, not knee cap tracking.

Last summer I ignored my knee pain because I didn't want to hear the same old story. I ended up with hip, foot and back pain as well as knee pain.

In late Feb. I finished 4 mos of PT and still had issues. Still thinking my bike fit was the cause of all my issues I went to a PT who also does bike fit hoping he could spot the problem. Instead, he rechecked ME! and found my left SI joint was locked up while the right SI joint was very loose. After a little manipulation all the pain went out of my right hip. That was on Friday, today I did a 22 mile bike ride with some really good hills and no pain anywhere. Just tiredness because I'm deconditioned at this point.

I'm still in awe that such a simple little thing could cause so much pain even though I experienced no pain in that joint.

Good luck, and congratulations on doing your tour.