Anyone been diagnosed with Radiation Proctitis?

Yes, but you need a gastroenterologist. They will perform a partial colonoscopy anoscopy or rectoscopy and document the bleeding.
This link "Treatment of chronic radiation proctopathy with radiofrequency ablation," is interesting. I had a lengthy search finding a practitioner. You have to be sure they are using the halo 90 catheter. The depth of the ablation is 0.1 to 1mm which allows for re-epililialization of the squamous cell layer. The catheter looks like the tiniest of fly swatters.

Hyperbaric oxygen therapy can also be successful. The trouble is that it's 2 hours a day for 40 sessions. Some injuries require 90 session.
There are other palliaitive ( useless from my experience) meds Rawassa and Sulfacrate.
Best wishes.

@again2, you might be interested in this related discussion:
- Anyone have radiation enteritis, inflammation of your small intestine?
https://connect.mayoclinic.org/discussion/radiation-enteritis/

How did the appointment with the oncologist go?

Just came upon info that radiation enteritis is what I have been having. It has been off and on for sometime but now has reached the point of too much to handle. Stomach pain, gas,fecal incontinence, incredibly sore butt. Have an appt with oncologist on Wed. He will most likely tell me to see a gastroenterologist. Doctors are quick to pass me off to somebody else.
Any advice in the meantime that will help besides the fiber things no dairy,etc?

I had radiation proctitis after proton treatment for rectal cancer. Subsequent treatment with radiofrequency ablation, but using Halo 90 equipment completely resolved extensive bleeding. The equipment was developed for the esophagus and it's significant to find a practitioner who is using the Halo 90. It was a long search for me. I found a physician at Stanford who had access to the equipment and was willing to try it. There is a physician at Scripps. But I found an amazing GI at USC Dr Buxbaum.
I never used sedation because the procedure is painless, but very effective.

Although related to prostate cancer, you might find the tips in this related discussion helpful:
- Looking for tips on managing Radiation-induced proctitis https://connect.mayoclinic.org/discussion/radiation-induced-proctitis/

Thank you

@naiviv, I believe that @mallika58 and @rtv have experience with radiation-induced proctitis. I added your discussion to the Cancer: Managing Symptoms support group as well.

Mild cases of radiation proctitis may not require treatment. Sometimes, however, radiation proctitis can cause severe pain and bleeding that requires treatment.
Here's some information on treatments from Mayo Clinic https://www.mayoclinic.org/diseases-conditions/proctitis/diagnosis-treatment/drc-20376938

Have you had pain and/or bleeding? What treatment(s) have you tried?