Hi. Thanks for your query. Noted the history of inability to pass stool normally for the last 3 weeks, passes little bit of stool, have strain hard, and feels that there is something still left inside. This can be remedied by the following: Try all sort of laxatives in different dosages to suit your passing of the stools and continue taking these as per the necessity. Sitz bath in a tub with warm water gives soothing effect and relaxes muscles and sphincters. Also can try passing 2 Glycerin suppositories per rectally in the morning before passing stool, really helps a lot. Since the history is short of 3 weeks only, there may not be anything serious. But if the above measures fail one has to go for further investigations like colonoscopy and so on.