bacterial infection
"Just started this medicine today for c diff, which I have been trying to fight with diet & probiotics for months now.  I thought I had a handle on it at first, but the bugs clearly had a meeting in my gut about their dwindling numbers and decided to multiply faster than ever before. It returned with a vengeance. Reading all of these horrid side effects is scary but a ten day ride through mall of it seems appealing to me at this point if it kills the c diff. No metallic taste for me so far but I do feel sort of loopy and may just go to bed for a week. Will update my progress and experiences soon. Insomnia? God I hope not."