At some point 1-2 months ago I rode my bike into a lamp post at a pretty loving high speed, side swiped it, and crashed hard, and I had the same problems. Weakness/stiffness in the neck, the wrists, the impacted leg and arms, accompanied by dull pain exaggerated by movement. It was especially painful in my thumb, to the point I thought it could be like a splinter fracture or whatever they call it, but it went away after like 5 days. So if you're still feeling bad in, like, a week or two, I'd recommend talking to a doctor