I am feeling horrible on augmentin.....every joint in my body hurts, I feel dizzy, nauseated, brain fog, and am exhausted and feel worse then when I started for a sinus infection......feel like i'm half dead!....when I called the dr's office to have them switch me to another antibiotic they acted like I was crazy......after reading other peoples posts on this site, it appears this is a nasty medicine for some......am I crazy or are all these horrible feelings from augmentin real??