Nerves getting the better of me

So tomorrow morning I have my HSG (Hysterosalpingogram) and I am really starting to panic, I actually feel sick with nerves.

My appointment is at 9am and hubby bless him has taken a days holiday so he can come with me and look after me the rest of the day as apparently you can get cramping etc for a day or so.
I have to take 4 antibiotic tablets 2 hours before and also some Ibuprofen about an hour before.
I am not sure how long the actual proceedure takes, probably depends how calm and still I can manage to stay.

I have been doing my usual and googling and torturing myself, but with this sort of thing you really can't win, not knowing what the test involves is just as scary as knowing exactly what I am going to have to face.

I have tried to keep myself busy and calm today, doing various exciting things like hoovering and washing, I even managed to fit in having a bath.
Shortly I have to collect my youngest son after his Spanish club and the other 2 will be home too so that should keep me busy.

We are dropping the youngest off at his friends house near his school in the morning (Bless her for thinking of offering) and she will walk him to school for us so we can get to the hospital in time.

I am trying not to expect anything from the proceedure,telling myself that hopefully because I have already given birth that it should not  hurt me.
I am also desperately trying not to get my hopes up about the increased chances of conceiving I have read this proceedure is meant to give you for the few months afterwards as I am so sick of the gutwrenching disappointments.

So take a deep breath...