After a rear-end on the 401 my neck was stiff for two weeks
https://donnamiltonzone.novacrestiq.com/posts/north-york-knee-physio-how-the-first-few-weeks-shape-long-term-recovery-2
Following a rear-end on the 401 my neck was stiff for two weeks, I gave it time until session three when the clinic massage felt like the first break in the tension, still surprised I waited.