Neck & Hip pain

First is my neck: I have headache with a pain in the neck 24 hours a day and when I rotate my neck for excersice it crackles. A few times a day it feels like explosions leaving my neck going up to my head, which results in flashing lights and extreme headache pain. Then in my hip, it feels like something is pinched. I can not lie on my sides for sleeping and when I sit, I can only sit for a very short period of time before getting very sore. The pain starts from the middle of my back down to my buttocks and hips. My legs feel achey and numb if I sit for too long.Is there anything I can do to releive all this pressure?Jessi