@stumpjumper This sounds like what happened to me. I had a very stressful job at the time, very physical and emotionally draining. I also during that time took an antibiotic for an upper respiratory infection.
I developed thrush in my mouth a week after the medicine was done. I usually get these with antibiotics but this time I didn't seek treatment for it. I thought it would go away on its own.
The infection went down my throat and into my stomach and intestines. I experienced chronic fatigue. I couldn't even get out of bed. I used to work out and run. I could run 5 miles, I weight lifted, and did Ariel sports. Now I could barely get out of bed. I had terrible panic attacks, and my head felt hollow. I couldn't sleep well at night despite feeling weak and drained. Whenever I are any grains or sugar my stomach would bloat up and I would be gassy and I would get this drunk feeling. Despite all this I cracked sugar. I would also get panic attacks after eating those things. It is hard for me to think and concentrate, I have brain fog as well. Lots of pain and inflammation throughout my body. My feet an legs feel sore and burning. I have itchy skin all over as well.
I'm still dealing with this now. I got a doctor 1 year later to diagnose me with yeast overgrowth however I've been on treatment medicine, Nystatin 2x a day for 4 months and the infection is still present. I don't know what else to do. I might be living with this the rest of my life. Try going to a Functional Medicine doctor in your area. They are the only ones who know about this disorder. Get specifically a: comprehensive stool sample for candida and parisites from them it's around $300-$400 and will test the DNA if microbes in your stools. It's more efficient than traditional lab tests done at Western medicine clinics. Also a urine acid test for candida.