Lower left abdominal pain is often indicative of constipation, along with abdominal bloating and infrequent or hard stools difficult to pass.
It is important to visit your physician to determine the cause of your constipation.
If the cause is not found and the symptoms are present for longer than three months, Irritable bowel syndrome is considered as a possible reason.
IBS leads to constipation, cramping like pain, and excessive abdominal bloating, and abdominal pain that eases after defecataion.
Since you have constipation and hemorrhoids for long time, and because you feel the pain as you are attempting to have a bowel movement, you may have fecal impaction (a large mass of hard stool or fecal matter that is “stuck" usually where large intestine meets the rectum).
The pressure exerted upon the abdomen will increase the longer the fecal impaction remains.
Visit you physician!
