How Can Pain From The Shoulder Blade To The Front Of The Head Be Treated?

It started back in December of 2017 when I was on my feet caring for my 2 kids. I ended up passing out. Not knowing how long I was out I came to and was fine. This has happened 4 times since December. I have also been nausouse since December. Its been a little bit of nause and bareable. About a month ago instaed of just feeling like I am about to pass out on my feet I get really dizzy and light headed and have to sit down or lay down if I am on my feet for more then a few min. I have a really bad head ache in the area of a cyst on the back of my neck. Not saying the cyst is the issue just the pain goes from shoulder blade to shoulder blade and to the front of my head. I have fallen down the stairs once and did hit my back on the corner of a tub once about 6 months ago. The pain level from 10 being the worst would be a 10. I also stay nausouse all the time and that feeling being a 10 also. It is slowly getting worse and I am being turned down to see doctors and the er is just brushing me off. I am very clueless and just am tired of hurting and feeling this way with 2 kids I am trying to raise. Please help!