please be careful hon- if you start to feel bad again- have a second opinion. i recently had to go to the ER back in March from a severe case of food poisioining. it was so bad it caused colitis and a bunch of other issues (they thought i had the flu bug at the same time too so that didn't help!) if you've been vomiting a lot or have had diarreah- your potassium might be low- so if you continute to feel tired this week or sluggish- go to the doctor again and have a blood test done (just a simple one in the arm is what they did on me to check mine) if your potassium is low they can give you a prescription to take to help your energy. (you don't want potassium through an iv- it stings). i hope you get to feeling better soon and don't need anything. but i thought it was worth mentioning- because i started to get sick on a tues, went to the doctor on a wed who gave me cipro and flagyl (made me worse!) and then wound up in the ER on friday way worse...my symptoms kept changing - so be sure to watch your body and not push yourself if you don't feel good. give yourself some time to heal. If it was food posioning- it can be really nasty to deal with. hopefully though your doctor was right and it was just a sour stomach.
feel better hon! be sure to drink lots of fluids and eat some bananas to keep your potassium up