According to your sign and symptoms you are suffering from some inflammation in the stool with pain and burning .
Actually Color of stool depend on the food that you have taken in the diet so you shouldn’t worry so much on the basis of THat sign and symptom.
For correct reason you should stool test .
If in the stool test there is no any abnormalities then
Do Endoscopy of Lower GIT area.
Next Steps
You can take treatment as follow as on the basis current symptoms-
Cap Pantop dsr 1 time per day for 3 day before food
Tab Flagyl 400 mg 2 times per day for 3 day after food.
Cap Vizylac 2 time per day for 3 day after food for strengths and immunity
Cap Multivitamin A To Z Gold 2 time per day for strengths and immunity.
Health Tips
Please follow good life style as take plenty of fluid and take less spicy and fatty food and keep positive attitude to fight any problem of your life.