Hello Noddy! <I've never been able to say that before ).
I think all the symptoms you mention are very relevant. Do you have a list? I always have a list when seeing doctors esp specialists. In fact I have a little notebook I keep for medical conversations.
I'm reluctant to suggest you look up your symptoms, as that can provoke more anxiety. BUT if you really want to, then look it up on Patient UK as you then know the info you are getting is accurate. To me the symptoms you mention can all be a feature of a flare up of inflammation, in this case either proctitis or colitis. I'm not a doctor and absolutely not diagnosing you!!
Maybe you can ask the questions tomorrow that you laid out here. The Dr may not have all the answers immediately, but I suppose it's likely they will want you to take steroids to get the inflammation down. They may do more tests first bloods, some sort of scope, a poke about.If it is 'just' proctitis then maybe they will give you steroids internally (enema or whatever) which will have fewer s/effects than orally.
I know, from personal experience, steroids are horrid, grim even, but they can really help and they will have you on them as short a time as possible.
I too was diagnosed with proctitis (since developed into fully fledged colitis), and it is not fun! I had similar symptoms as you and have managed to stay away from oral steroids until now, as am in middle of a flare up. I would think bloody stool should be enough for them to investigate further and get you into a gastro clinic and on some meds! With proctitis, topical treatments such as suppositories or enemas are pretty effective, unpleasant but you quickly get used to it. The thing about proctitis is that its damn difficult to treat and can be hard to get a flare up under control, but you're much less likely to end up on heavy duty steroids, have surgery, be unable to eat, etc. In other words, annoying but less serious than colitis.
good luck with your appointment, and don't let them fob you off again!!