Loose motion after antibiotic h pylori.

Hello Sir, I have excessive belching and sour taste in mouth in night. Not in daytime. Doctor treated with Omez 20g for 2weeks. After that I was feeling little pain in chest. My endoscopy report - Antral Ulcers?  H. Pylori induced. Then Dr. treated with Sompraz 40mg BD + moxclav 1g BD for 6 day, then Sompraz 40mg BD + levofloxacin 750 OD for 5 days, + Sonata lr, And told to check for the infection after 4 weeks treatment. I was getting loose motions 2 times in a day after 3rd day antibiotic treatment. Usually morning motion in much watery. Night motion little hard. Doctor added -  econorm capsules. Now I am taking Sompraz 40mg BD + Sonata lr + econorm probiotics . I am feeling little pain in chest sometime Usually empty stomach. Or in night. Or when too much gas in stomach. It get relief when gas pass via belching. my motion is not curing after 5 days antibiotic treatment. still getting loose motion in the morning. How can I get back to normal hard bowel movement. Thanks a lot!!