Metronidazole and pharmacy

nausea, vommitting, metalic taste before swallowing pill, loss of apetite (i know i mis-spelled, sorry) then still monezuma's revenge, and swollen irratible gums........ My perscriptiion is 2 pills two times a day I have 2 days left . I already called my pharmacy he said youre sucestible , really wow, in order to get better i have to feel worse than i originally did in the first place........

While taking this medication, I grow a bit fatigue, and while trying to swallow it, the taste is disgusting, and I attend to gag the pill out of my mouth, and the pill turns to moosh. I was originally prescribed Flagyl, but my lovely pharmacy friends substituted this Metronidazole for Flagyl.