I had a hysteroscopy and dye test under X-ray when I was having investigations for infertility. I was 27. Painful, and wasn’t given any information about it before I had it.
Had another in outpatients aged 47, with biopsies, absolutely excruciating. No pain relief was offered, not even Entonox, which would have helped. As someone who had never had children, even smears are very painful, but this was absolutely awful.
At the very least, I’d want entonox available, yet when I was so uncomfortable during the 2nd hysteroscopy, I was told by the consultant, in quite an irritable way, that I I couldn’t cope with the ‘discomfort’, I’d have to have it done under a GA. Like I was making a a fuss over something so minor, it was embarrassing for him to witness it.
And no, I was given an information leaflet after the procedure, not before.
I’ll definitely be looking at the information you have provided, OP, and signing up for improvements to be made.