There are many reasons for chronic constipation.
As i don't know much about your medical history so wont be able to tell exactly what is the cause of it in your case
Need to ask few questions regarding your problem before coming to a conclusion.
Next Steps
consult me if possible for you
Health Tips
First you need to try life style modification.
1. Drink plenty of water. 4 liters per day.
2. Have high fibre diet.
3. low cholesterol diet.
4. low starch
5. Add routine to your diet.
6. Eat green leafy vegetables and fruits.
7. Avoid Spicy and oily food
8. Do some physical exercises on a regular basis.
9. Go for morning and evening walks.
10 . Get
thyroid profile checked.