Everywhere is different, so try not to worry (try!!). Perhaps he was just a radiographer and not able to discuss your results with you in detail. I thought I had a consultant there, but I might be wrong.
My HSG was really quick and barely painful, like you said, I felt the balloon and the dye. It pretty much felt like too much fluid being squeezed into a tight space, which you would expect. Definitely not worse than af pains.
When is your next appt? Perhap you'll get a letter?
xx