How to get insurance to cover private medical costs

Hi everyone,

I have been chronically ill with severe debilitating symptoms for 3 years. I live in England. I have been diagnosed by a functional Dr as having mold toxicity/illness called CIRS (chronic inflammatory response syndrome). This isn’t recognized by mainstream medicine but I believe what’s been happening to me very accurately relates to this illness. My health has scarily declined not just through symptoms of fatigue etc. I have had my whole life stop the last few years. In England the benefits are not enough and I really need to get private treatment to better my health and my overall life. I found a clinic and medical Dr that can give me the medical treatment I need and am desperate to get insurance to cover my medical bills. Yes I know that medical insurance doesn’t cover pre existing conditions but I’m trying to get around that as it hasn’t been noted by my GP that I have any immune issues etc. Another issue is that many insurance companies only take Dr’s/clinic’s that are on their list and I want the choice to choose the clinic. Please if anyone could help me I would really appreciate it.