That infection in your foot from Asia could have been a roundworm infection like strongyloides which are very common in Southeast Asia . Strongyloides have many symptoms and you describe a lot of my symptoms as I have been battling these invaders for years without knowing what I had and am 98 percent better after 11.5 months of medications after finding out I had these evil invaders . Hope this info guides you in the right direction . An Elisa strongyloide blood test especially visiting Asia barefoot can be ordered from your dr.