An update
My Dr does not believe the low iron is the cause of my memory loss and confusion. I do have to have another blood test for coeliac disease as my son has it and I may too as although I am mainly on a gluten free diet for health reasons and to support my son I do still have toast in the morning using normal bread, again though my dr does not think this is related. The most shocking thing of all is that my Dr pulled out a stack of paper he had researched and printed off the internet and told me himself and a colleage had spent a few hours looking into the cognitive effects of crps on my behalf and wanted to send me to a neurologist and he was going to contact ones in my area who were educated in the effects of crps. Bere in mind this is a general physician and not a specialist. I did the most rediculous thing by bursting into tears, i think it was just relief of finally finding a Dr who believes me and will go above and beyond to help me. He told me he was on my side and would support me anyway he could. It was a wonderful feeling. I am going back next week to see him so he can send me to a neurologist. I have never seen one so dont really know what to expect so if anyone can give me advise on what may happen in the appointment i would appreciate it