Dear Linda,
Firstly, welcome to the forum. I am sure you will find a lot of advice and support from the members here.
Your message wasn't too longwinded; far from it - just look at the length of this reply!! An important thing to realise is that we are here because we too suffer from IBD and it is a 'messy' complaint, so don't worry about talking about your symptoms/experiences (within obvious limits, clearly!!).
From your post I am assuming that this episode was your first ever, and that up to then you had not had any similar previous experience of IBD? UC is a very individual condition and affects different people in different ways. I was diagnosed with UC in November 2011, after having been passing blood for the previous four months or so. It started with just a few drops on the loo paper (my GP initially thought it was probably haemorrhoids), but it just kept on getting worse and worse until a colonoscopy was ordered; I had to wait 8 weeks for mine, and the diagnosis was UC, a condition about which I hadn't heard much up until then. I'm a bit more clued up on it now!!
UC and Chohn's do share similar symptoms, although the causes of the two are different. As you probably know, Crohn's can affect the whole digestive tract from the mouth to the rectum, whereas UC is a condition specific to the colon, sometimes including the rectum. It can affect all the colon or just a part of it.
The symptoms you have described are pretty much what you would expect of UC. Bloody diarrohea, abdominal pain and cramps. Funnily enough it has only been during a 'fare-up' that my stools have been solid, although flecked with blood.
I think you'll have to wait for the colonoscopy (not nice, but not that bad either - make sure you ask for sedation, if it's not offered; it makes the procedure much more tolerable) to get an accurate diagnosis. The consultant who did my procedure told me immediately of the result and recommended the appropriate medication.
Do not, though, ever worry about troubling the professionals for advice. They are there to help you, and unless I have just been incredibly fortunate, I have had nothing but helpfulness, kindness and understanding from my GP and the gastroenterologists under whose care I have been placed.
Try not to worry too much (dificult at first, I know) and get as much information as you can. Consider reading the various big IBD charities' websites (Crohn's and Colitis UK) and there's a wonderful Scottish-based IBD charity 'Cure Cronh's Colitis' which passes on 100% of its income for research into a cure for these two diseases.
I send you my very, very best wishes.
Peter A