I don't understand your symptom of abdominal pressure. Do you mean to say fullness in abdomen? Or incomplete defecation? Or crampy pain in lower abdomen ? Do you have to strain while passing stools ?
If you have incomplete defecation, drink lukewarm water daily
Look for anything coming out of anal region while defecation
Look for bleeding or sticky fluid from anal region.
Next Steps
if the symptoms are not relieved in 2-3 days, visit nearby hospital and get yourself examined