have you had a culture done for trich recently. antibiotics especially that longterm and many doses of it can destroy most of your "good bacteria", causing fungal infections or other. testicular pain and impotence may have been caused by that, have a md draw labwork for impotence, maybe do a culture for trich. bloodpressure,diabetes,vitamindefficiency etc... may cause your symptoms, maybe not. so many and much doses for trich, seems to me you killed a fly with a missle when all you needed was a fly swatter.
Are you still testing positive for std's? The medications you have taken surely would have rid the "parasite." Why not post this question to Dr. H in the STD forum? He may have some better insight.