Is this haemorrhoids? Please help…

I had constipation for several days and day after I finally could defecate, I've been struggling with some uncomfortable feeling around my ass. It's been three days after I've started having this little pain. Yesterday night it became quite tougher all these three days I used heparin ointment which helped to reduce the pain. but today my period came and I feel this pain right inside my anal I didn't have blood or any pain while I defecated these days, tho I'm so scared to go to the doctor because of the sigmoidoscopy that takes place there

image

image