First took them 500mg cephalexin 4 times a day and my stomach seemed like it shut down and I got sick. Stopped taking them for maybe 3 days than picked them back up at 500mg 3 times a day. Finished the ten day coarse than started taking amoxicillain for about 10 or 15 days. Had one small break in their also cause I ran out at one point. When I started back up on the cephalexin (after getting sick) I noticed a marked drop in my symptoms. Even after I went on the amoxicillan I was doing much better than normal. Less brain burn, fatigue, more capacity with problem solving. Than the symptoms all started coming back maybe even a little worse than normal. So that's when I decided to quit the abx. Going from memory maybe 5 days or so now. Slowly started feeling better again. Worked all day today doing light tasks which is good for me. For contrast a crappy day I can't do anything but sit in front of computer or watch tv. And I can have those for months at a time. Good days are maybe once or twice a months and if I take too much advantage of them I end up crashing. post exertional malaise. One time I had that so bad I couldn't get up out of bed without feeling so week and dizy I had to lay back down. Took a day in bed and probably a week of reduced activity to recoop. So this is pretty big improvement. Dramatic improvement in activity with no post exertional malaise. Hope I continue to do well but not counting on it. Seems whenever I fnd something that seems to help the effect wears off but I still have to do the thing just to maintain.