I want to share with you all something that the general treatment forum did not reply to. I have been having burning stool, shallow and infrequent breathing, fatigue and dizziness. Basically these are all symptoms of metabolic acidosis. I have been taking acidophalus and probiotics which are all lactic acid generating probiotics. This is causing my problems and may be causing yours. Lactic acid is generated post workout and makes your arms feel heavy. Look up symptoms of metabolic acidosis and compare them to your CFS symptoms. There have been threads on this and there are studies showing CFS patients have a higher % of lactic acid producing bacteria and high lactic acid levels. This has to be the cause of CFS if other causes are eliminated and the doctor gives up. So many of you cannot tolerate probiotics and have these symptoms. In cattle they use lactic acid utilizing bacteria to prevent metabolic acidosis when they switch them to a grain diet. They should sell these for humans since these bacteria also make up the natural flora of the human gut. Only babies naturally have acidophalus in their gut because they have next to no digestive enzymes so the bacteria ferments and acidifies the food for them. The body cannot even metabolize D-Lactate which is generated from many of the lactic acid "probiotic" bacteria. It is a potent neurotoxin and D-lactate acidosis has been documented in medical literature from probiotic supplementation. YOU HAVE BEEN WARNED. It is the cause of my CFS. Whether or not the probiotics caused it or I already had an overgrowth to begin with of lactic acid producing bacteria, I do not know, but I do know I get significantly worse if I take lactic acid probiotics as do many of you. My band aid solution for now is to go on a vegetable diet for 2 weeks, eliminate dairy, and keep carbohydrates down. I may fast for a day and drink lots of water the entire 2 weeks. I have a green drink I will be drinking. I am looking for probiotics containing lactic acid utilizing bacteria and I have found none on the human market. I do not believe that the issue is simply a problem of D-Lactate poisoning but also L-Lactate poisoning as probiotics such as culturelle which contain L-Lactate (the form of lactate the body can metabolize) producing Lactobacillus GG also give me the same relapse. All of us have the same symptoms, or at least 90% of the same symptoms. Post exertion fatigue is one of them. As someone who has tried every hormone replacement therapy (even simultaneous hormone replacement), I can attest that if the gut bacteria are proportionally off and a higher % of them are lactic acid producing as opposed to lactic acid utilizing, this will generate chronic metabolic acidosis and cause every symptom of chronic fatigue despite attempting to balance the hormonal system or take anti virals or do whatever else esoteric procedure the doctor claims is beneficial for debilitating fatigue which clearly is the result of an extreme metabolic problem such as metabolic acidosis. Seeing as most of us were at one point normal, a genetic factor is most unlikely. What is more likely is an overgrowth of lactic acid producing bacteria that overpowers the bacteria that metabolize/break down that lactic acid. Plant based digestive enzymes may also help this problem in addition to the above simultaneous measures. I just want you all to be very careful before you start chugging lactic acid producing probiotics that are not giving you much benefit.