I had a whiplash injury one year back when I met with an accident. It was fortunate that I didn't have many injuries. But I had severe pain and aching in my neck and shoulders. So I went to a hospital nearby and the Ortho told me that it’s sort of a whiplash injury due to the impulsive stretching of the spine. He told that it will take a quite time to get healed and suggested to get physiotherapy if possible. So I did physiotherapy for 2 months at a sports injury clinic i**. It really worked for me and I’m perfectly okay with my neck and shoulder.