I had one in November, which I had not wanted to go to at all, and convinced myself that if I was to have a recall, it would come back quickly, and the fact that it was taking a long time was good. It took a while so it was a surprise to get a recall on day 13. I then had to wait a couple of weeks to be seen as the date they gave me clashed with a funeral that I wanted to attend. I have since read that they do not send results out on days that mean you will get them at a weekend when there is no one to phone up about them, so that may build in a delay.
I was always worried that they would be picking up scar tissue from mastitis which I had a lot of when my first baby was little. I was pretty convinced I did not have cancer (and the statistics for recalls bear that out), but all the waiting was stressful.
When I got there, the pictures they had were pretty convincing. They were very, very thorough with their mammograms and ultrasound
and did not find a thing. Also, the mammogram lady, who stayed with me the chaperone the consultant radiologist who did the ultrasound, was very good at explaining what she was doing and very competent and the whole thing was a much better experience than the screening mammograms. I wouldn't worry about going back to them again, just the inconvenience.
Also, because my very first experience was not good, I took paracetamol and nurophen plus before I went and did not feel a thing