Does The Pain In The Neck Due To Disc Problem?

Hi I hurt my neck body surfing and then got hit by a drunk driver and felt electrical sensation down my right arm. I had x ray done and no fractures were found. I have been going to a chiropractor and was doing well until recently he cracked my neck and I felt electricity down right arm again. Yesterday I was stretching in bed and immediately strained my neck. Why does my neck start to feel better then when I m pushed or grabbed or move quickly it hurts. I have had this now for 5 months and was feeling better until recent. Can anyone tell me what these are a sign of. Will this instability last forever or can I rehab. I also felt a minor click in the back of my neck. When I was massaging it. It felt like the bone clicked back in place from the outside to in. Left to right. After I strained it stetting in bed it has been getting slowly better, however when I cough I feel a slight pain on left side of neck in the back of course. Is this a sign of disk problem or facet joint. Also the clicking is that the facet joint moving and is it allowed to move or am I in a dangerous situation. I am just scared and am going to have an MRI done I just thought that after they did x rays it would be ok and would get better with time. But I keep irritating it. Is there something I should be doing to strengthen it or just let it heal.