Yes, abdominal pain could be a side effect of O2 Tablet (Ofloxacin and Ornidazole), as it may irritate the stomach and intestines in some people. Since the pain has persisted for several days, stop taking the medicine and consult your doctor, who can determine the cause and recommend a safer alternative if needed.

Based on your current health conditions, it is strongly advised not to take any medications on your own, including Ofloxacin + Ornidazole (O2 tablets). Self-medicating can lead to drug interactions, side effects, and ineffective treatment, especially since your symptoms may have different causes (hernia, fungal infection, urinary issues). You should consult a qualified healthcare professional, undergo appropriate investigations such as urine tests and clinical evaluation, and then follow a treatment plan tailored to the root cause of each problem.