Chest Pain. To diagnos the problem.

For last two weeks, I am suffering from chest pain whenever i try to bend my neck or sideways towards shoulder, I feel the pain originating in my chest radiating towards arms and shoulders. At the same time I was having muscular spasm in my back since last week and I took few Physiotherapy sessions to cure back pain. My physio suggested, that chest pain could be related to muscular spasm however even after physio sessions, there is a relief in back pain but chest pain persists as original. Physio suggested to get lipid profile, CRP tests done to ascertain if the chest pain could be related to thickening of blood. I wanted to take second opinion as if we are going in right direction to diagnos the problem.