@Mars27 Gastroenterology is a branch of medicine, and Colorectal is a branch of surgery. They are different things and deal with different issues.
I would be truly astonished if the on-call surgical team would see a patient with thrombosed haemorrhoids, especially on a night shift. In nearly a decade of practice, I’ve never seen it happen.
OP, please call 111, this is what they are there for. If you go to A&E, you will most likely have a long wait on a hard chair to be sent home with some painkillers, whereas hopefully 111 can get you into an out of hours service much faster.
A&E is not the place to go for a ‘fast-track’ referral for a non-emergency operation. My trust will only do referrals for genuine emergencies, or for two week waits for suspected cancers. Referrals for haemorrhoids would need to be done via your GP.
I do have sympathy for the pain you’re in, and it must be awful, but I really don’t think sitting in A&E will fix that. If you do go, take a snack, a book, and a phone charger, and prepare for a very long wait.