Would you go into more detail about this? I recently developed an annoying level of anxiety (complete with panic attacks) after a pretty long course of antibiotics.
What I did was just throwing lots of different (valid!) bacterial strains in, and see what comes of it (ubiome wasn't available back then, and regular lab tests are quite expensive). Kefir did the most for me, and it has different L.bacillus strains and some yeasts in it (http://ntur.lib.ntu.edu.tw/bitstream/246246/177589/1/04.pdf). Kefir is reported to kill off or starve strains that don't belong in its ecosystem, but it's quite possible that this is not true or that there is point beyond which the L.bacilli will die off and the unbeneficial strains take over. Smell and look are reportedly good indicators for that, but I didn't find any studies for that. One would have to send it into a lab to make sure.