I have some kind of odd ache in my right shoulder. Not exactly a pain, but an odd lingering ache that almost feels like numbness but it’s not. I was still able to loosen and tighten the rear nuts on my bike. Adjusting the rear wheel so my chain is tighter because I noticed a few pops on my chain while riding uphill today. Maybe I whacked my shoulder on a truck mirror while riding? No bruising and I can’t remember the last time that happened. Odd.