Bohica

I have been looking at a lot of posts and have a couple questions, First I have been diagnosed by the VA with CFS and IBS, this happened about 20 years ago, at that time I went through phase 1 and phase 2 of the gulf war registry exams, I was asked to go to Walter Reed hospital for more testing but could not do to income or lack of. I filed a claim at that time and it was denied as not being service connected. I don't always have the money to go to a doctor and usually it doesn't help. I have recently started to refill my claim because these are considered presumptive. I have many other issues I am filing with these. My question is do I even stand a chance of getting approved, I am going to my doctor this week to fill out the forms given to me by my VSO. I also have a lot of the symptoms for fibromyalgia and will talk to my doctor about this to try and include it if possible. I am under the impression from my VSO that as long as I am still diagnosed with these issues that I should have no problems getting my claim through, is this true or should I add more information and what kind would help me. thanks, Andrew