I've taken Metronidazole three times/day for two weeks for a foot...

I've taken Metronidazole three times/day for two weeks for a foot infection. The metallic taste and nausea appeared after 7 days. Now it's horrible... every single meal that I've had since I've been taking the pills now gives me nausea, so I can't eat. Today I had a cup of coffee and it has been the most horrible experience (nausea, vomit, headache). I've felt really tired, I can't work, because of the nausea and fatigue. I'm done... will not continue taking my pills any more! DO NOT DRINK COFFEE IF YOU'RE ON METRONIDAZOLE!