Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain the symptoms of constipation along with abdominal pain can be due to causes like sudden changes in dietary habits, excess intake of antacids, irritable bowel syndrome, excess intake of dairy,eating disorders, lack of appropriate physical activity, side effects of medicines, Hypothyroidism etc.. I would suggest you to consult a Gastroenterologist and get evaluated and he can advise you get investigations done like Colonoscopy, Barium swallow, hormonal assy etc to confirm the cause.. Treatment of the cause can relieve the symptoms.. Norflox Tz and Ornidazole are antibiotics used to treat bacterial infection and and unless there is infection they will not help in resolving symptoms.. First of all I would suggest you to start taking a fibre rich diet involv lots of green leafy vegetables, fruits and salads.. Drink plenty of water.. Take short walks after meals and avoid being sedantary throughout the day.. You can also be advised to take laxativs like Polyethylene glycol [Miralax], castor oil also acts as a lubricant and laxative.. You can also be advised to take Psyllium husk or Lactulose.. You can also be advised medications like Lubiprostone or Linaclotide.. Try to go to bathroom same time every day in morning as it will help in inculcating regular bowel habits.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.