heeby I asked the questions and got the following answers
"when i go for a scan will they scan my uterus or just my painful area i.e. right side only)?"
It will be an ultrasound (she assumes), but thats not my area of expertise. They will very likely scan the whole uterus including both overies.
"also is the scan external or internal?"
It will start off external, and depending on what they see and the quality of the pictures, they may decide to do an internal scope, but that can only be decided on the day.
"What would they class as a big cyst i.e one needing treatment? and (lastly) if the cyst is big does it affect other parts of you, for example pushing your tummy or bladder ?"
I have not much clue I am affraid(she does CT scans and xrays etc not ultrasound)
"wish you hadn't offered ???"
Glad to be of help!
Hope this is of some use!....really sorry i couldnt be of more help! x