urinary tract infection
"I started Macrobid yesterday and I felt okay but today I've had the most horrible painful stomach cramps and the weirdest constipated diarrhea I have ever had. I am constantly feeling like I need to throw up and the bowel movements and pain are what prompted me to do some Internet digging. I have taken four of  100mg pills in two days and I refuse to take another. At work today I nearly tripped several times and I was disoriented, felt sick, and had difficulty walking straight. There are other meds out there and while I know that everyone reacts differently to medication, I seriously would not wish this stomach/abdominal pain on anyone; it is incessant and keeping me from sleeping. I pray for alleviation tomorrow but fear it may take a few days."