Are you lying down when using the morning enema?
Is it foam or liquid?q
I have ulcerative proctitis also. At first my GI just had me on the Rowasa enemas for three weeks with a three week refill. She told me to just do it for three weeks but as soon as I stop everything started back again. I got the refill and everything seem to be good for about two months and then it started back. She finally put me on Asacol along with the enemas. She said some people with UP take maintenace meds for the rest of their life and some don't. She said most of them do take maintenace meds. She said it's better to have some meds in your system. So far everything is going okay. It took some time. Your GI may just want to see if your are one of those people who don't have to take meds for the rest of your life. I hope everything works out for you.
Btw, are you the famous Neil Young?