hi i had gone through your query and understand your concerns. i would come up with the possibility of HEMORRHOIDS may be the cause for sufferings.
-proctoscopy examination may confirm the diagnosis.
possible causes include;
i advise you taking Homeopathic
medicines gives safe and permanent cure for your piles complaints without any surgery.
consult your local homeopathic physician for correct diagnosis of the case and remedy to fit your complaints
I hope this is helpful for you, thank you