Well I just got back from my appointment. It went well, the doctor is really nice which helps a lot, he doesn't talk at you or ignore you, thank god!
Seems my symptoms aren't typical though, but could still be endo, just in rarer form i.e. just in the abdomen and bowel. He's sending me for an MRI to look for endo, but also cross referring me to a gastro specialist to rule out anything going on there, as I have family history with gastro stuff. I've had bloods done at my GP that seemed to rule that out, but he wants to be thorough, so I'm not going to argue.
Once I've had the MRI it will go to both consultants and I'll then have appointments with both to follow up.
In terms of pain management he's said the only thing that will really help is codeine or morphine so I will need to get to the GP and sort that out, he's said steer clear of ibuprofen for now as that will just make things worse.
So it's back to waiting for appointments now, but at least step one is out of the way...