I don't think colonoscopy is on the table for a while lol. It looks like a mild case of C. diff...and they may just try different antibiotics to clear it up. I never had this though, so I really don't know what they would think.
you said you had to go the emergency room if you wanted medical care? can't you get a regular doctor office visit for this? We have urgent care here in the US, which is where I would go for this issue, it's not expensive and slow like emergency room.
I have the anxiety about being treated like an idiot over self-medicating as well. Don't worry, everyone tries their best not to see the doctor and it's okay you tried things.
You're too kind - my family see trying to get any type of help as weak and neurotic, even posting on this forum that I've told them about. And yeah that's what my doctor's told me. This is actually my new doctor, because I thought my original one was his own brand of no f***s to give but this seems pretty standard here lol. Go to the emergency room or go away. I'll see if I can get an office appointment first though that's the only way you can get urgent care aswell i.e. through referral from the GP. Definitely gonna give lurker's suggestions a crack as well in due time.