Hello Looking at your history this could be hemorrhoids fissure in ano or inflamed anal gland in my opinion you should consult a general surgeon for per rectal examination and few tests like blood for hemoglobin CBC and liver function test if you can upload me complete medical history and your dietary habits and work culture I will be able to help you better you should avoid constipation by taking laxatives or stool softening agents like liquid paraffin have plenty of fluids and dietary fibers use antiseptic or anaesthetic ointment like lignocaine to be applied locally Hope this helps you regards