Hi Claire so sorry to hear of all your ailments. I too have suffered for 35 years with word stuff. I now know it is from Leaky Gut syndrome”. Go research it, and you will find a wealth of information. Pub Med is a great site. I went to an interventional dr and got tested through the Great plains Labarotory. Tests results proved I have overgrowth of Candida Albicans In my intestinal tract and they cause all kinds of health problems like you are describing. Anti fungal medications can help greatly. I took them for three straight weeks and after I felt amazing! Most of my health problems went away! But they came back after two years. The Candida albicans thrive in the body if your PH levels are off. It’s difficult to figure out how to fix the PH levels. Go look into the Candida diet and go from there. I hope this helps you.