Welcome to the forum.
In many cases, whiplash will eventually get better on its own or after some basic treatment.
However, sometimes whiplash can cause a number of severe and troublesome symptoms that last for a long time.Whiplash that lasts for six months or more is sometimes known as chronic whiplash
or late whiplash syndrome
If you have whiplash, it is important you keep your neck mobile by doing some gentle neck exercises.Your neck may be painful, but keeping it mobile from an early stage will improve its functionality and speed up your recovery. Any pain you experience when moving your neck is normal and will not cause further damage.
I hope this information has been both informative and helpful for you.