Constant pain in the rectum gets worse when clenching or in certain positions.

[Raspylol]

Hi there. This is my first time posting here so I am very sorry if I am posting in the wrong place. I am visiting my GP about this soon, but i need some help faster than the appointment is available as work is becoming impossible.

I am currently suffering with a constant dull pain in my rectum. I have had it for a few days but right now it is worse than ever. The main feeling I can relate it to is a constant feeling of pressure.

I've noticed that it is much worse when I have been walking around. For example I work a night shift at a supermarket. And when I have been walking around all night it gets to the point where I cannot function.

Clenching significantly increases the pain temporarily.

All of this being said, I suffer no additional pain when sitting down or passing a stool, in fact, in a way I am more comfortable in the seated position.

There has been no blood passed in my stool and no discharge.

I hope I have been thorough enough, I am able to answer any questions that anyone may need answering.  

[Blkmgikwmn]

It may be an Anal fissures which are cracks or tears in the anus and anal canal. They may be acute or chronic.
Anal fissures are caused primarily by trauma, but several non-traumatic diseases are associated with anal fissures and should be suspected if fissures occur in unusual locations.
The primary symptom of anal fissures is pain during and following bowel movements. Other symptoms that may occur are:
bleeding,
itching, and a
malodorous discharge.
Anal fissures are diagnosed and evaluated by visual inspection of the anus and anal canal.
Anal fissures are initially treated conservatively with home remedies and OTC products by:
adding bulk to the stool,
softening the stool,
consuming a high fiber diet,
utilizing sitz baths.