Hello Baskaran, Considering the fact that you are a diabetic patient for the past 20 yrs, the symptoms as mentioned in your post can be attributed to functional reason (decreased gastric motility). However, any pathology (like obstruction) in the Gastrointestinal tract also needs to be considered. Kindly consult a Gastroenterologist & get a proper clinical examination done to detect any pathological cause for the symptoms. Investigations like Ultrasound scan of abdomen, contrast studies & Colonoscopy will be helpful. Permanent relief from your symptoms will be obtained once the underlying cause is corrected. Laxatives like Cremaffin can be used temporarily. You can also use Isabgol husk at night time. It will help in clearing of bowel in the morning. Wishing you a Good Health Take care.