Have Stomach Ulcers, Acid Reflux, Memory Issues, Depression, Bad Tremors. Had Guillain Barre. On Nerve Pills. Suggest

I had Gullian Barre at 8 years old. I am now 50. After I left the hospital all those years ago, I was a totally different person. So nervous all the time and just didn't feel like the same person anymore. Doctors put me on nerve pills then and I have always had to take them. Course my body is so adapted to them they just don't work anymore and my anxiety has hit a whole new level. I have bad tremors and my thoughts are jumbled. I have stomach ulcers and severe acid reflux. I stay sick and so tired, but yet I can't sleep. I can't drive anymore or leave my house anymore. This is getting so much worse with age. They say I am depressed and suicidal,and I agree with that, but the reason is because I am so sick and nervous all the time. It has put my life to a complete stop. I don't know what do to from here. My memory is getting worse everyday. At this point, I am not living, I am just existing. I am also extremely nauseous and have started vomiting on a daily basis. I have restless leg and have been told I have possible blockage in my neck that can lead to a stroke. I really need some answers. I just don't have the proper insurance to have the test that I need. Can a neurologist find out why I am so nervous (physically)?