Started with greenish solid bowel movement accompanied with stomach cramps.. Within last two hours as went to diarrhea with little solid... now having chills and lower back pain... I just ate a corn dog now my stomach is making all sorts of sounds... But I was recently on an antibiotic amoxicillin for tooth removal.. I was taking probiotics with antibiotics but stopped after I finished the antibiotic.. could this be a stomach virus or from antibiotics removing all the bacteria from my gut??