What Causes Discomfort In Middle Of Chest And Heaviness Around Neck And Head?

There is a flushing feeling in the middle of my chest area. My body feels tired, weak and heavy. My head hurts all around. My neck feels numb and stiff around my right side and under my neck and all around the neck area too. Am 30 years old. It hurts when I swallow anything.

I might have a pinched nerve because of body feeling weird or do I have a upper back herniate disc?

My left whole arm felt dead when I was sleeping and was not sleeping on that side because of sleeping on the right side and this was 5 days ago.

I fell when I was 7 and felt my back tingle. I fell when I was 14. I was in a car accident at age 20. My body shut down of eating some soup and felt my heart to beat again at age 27. I felt my chest heavy at age 30 and the doc said I was okay but he said I should see a heart doctor.