helicobacter pylori infection
"I am finishing up my 7th day of the medication.  Every website I have read made me extremely nervous about taking this medication.  If I can give any advice, EAT A FULL MEAL BEFORE YOU TAKE THE MEDICATION! If you don't eat, you will be extremely nauseous and throw up.  I hate forcing myself to eat, but if it prevents the nausea, I will do it.  You need to eat 4 meals per day.  DRINK PLENTY OF WATER ALL DAY!!!!  The mornings are hard, because you do wake up nauseous, but the first thing I do is grab a bottle of water and drink some.  I ended up with the darkened stool and diarrhea, but other than that everything has been going fine."