I have lived in Mexico for most of my 78 years and all my life almost perfect health. near 0 digestive issues until last year´s covid. Now we are in october 2021. In october 2020 my wife and I had covid. Didn´t go to the hospital but both had pneumonia. Very weak, went from 130 to 115 pounds in 3 weeks. Coming out of covid I started having upset stomach, ...