"Antenatal scan"

I went for a scan on the 17th June as I was referred by the gp for an urgent scan. I turn up to my appointment with a full bladder and I get turned away by the lady seeing me in the scan room because apparently my bladder was not full. She did not even give us a chance to wait to see if she could do it again and said I would have to rebook!!!! I have been getting abdominal pains and irregular bleeding non stop! Now I have to wait until my next appointment because she was rushing to go on her lunch! Absolutely ridiculous. By the way she saw me 10 minutes earlier than my actual appointment time!!!!