bladder infection
"symptoms: SEVERE abdominal pain, constipation, nausea, achey pain in back, fatigue, chills, sweating, headache, cough. 

i just finishd my last dose of macrobid and I believe it cleared up my UTI but these side effects are not worth it. The abdominal pain 
I have been having is so bad that it has woken me up from my sleep 3 nights in a row. I have the chills and because of the abdominal pain it is hard to eat. I also have terrible headaches that worsen with certain movements or lights. This pill is awful and I wish I would've known about these symptoms before starting."