I am suffering from severe constipation since one year after surgery out my gb, my age is 75 yrs. The constipation follows with acidity, inflammation and sleep disorder. So far I have been taking allopath medicine as diagnosed for ibs c but there is no permanent relief, my weight has gone down. Now for last 2 days I am using gasex tablet of himalaya co. And I get relief of constipation and gas. Please suggest what other medicine should be taken by me along with gasex tab.