Should I See A Gastroenterologist For Persistent Mild Stomach Pain And Loose Stools For Two Days That Improve With Norfloxacin-TZ?

Hi, I have an issue regarding loose stools. Its been two days since am facing loose stools issue. Norflaxin-TZ this is the tablet advised from an medical practitioner. There was a significant improvement. Stool frequency came down from 10 loose stools to 3 per day. But the stool was not solid and stomach pain mild still persists. I did had outside food for the past one month and an had a beer before the loose stools episode. Could you please advise if i would need to consult and Gastro for change of tablets or could you suggest any better treatment.