I think you should do what's right for you in both cases. If you feel you want to go to A&E, then you should. Was you last experience in A&E, the time you felt they made you feel you were over reacting? If it was, if you can I would wait until tomorrow for the scan as it will probably been in a different part of the hospital and they will probably be more sympathic.
As for taking someone with you, maybe you should take Kalms if she is the most supportive. I think it would probably help to have a friend with you and hopefully you won't feel so lonely. You shouldn't feel silly showing that you're hurting either. It's not a weakness, it's a valid emotion and you have every right to express that you are suffering.
I hope everything goes as well as it can in this situation and that your body has expelled all the tissue naturally so you can go home and continue to recover.
Sending you lots of hugs and well wishes.
