From last 4 days, I am having stomach pain like hell after having lunch and dinner only. Pain exists for 2-3 hours and then everything will become normal like nothing has happened. I am not having acidity, even not feeling an ything related to diestive. This is something different in terms of pain. I tried tablet for acidity before having the meal, even tried stomach infection tablest also but nothing as worked . I am not sure why it is happening, kindly advise