Thanks, the appointment went well, we met with a team of Drs, nurses and dieticians. It is a lot to get our head around but the team answered all our concerns and questions and really were fantastic.
We have to feed max every 4 hours minimum, it should be easy to manage day to day, the problems will arise when he gets a temperature/illness that makes him lose his appetite or has vomiting and/or diarrhoea... In which case we have an emergency regimen to follow every two hours of glucose drinks, and if he can't keep them down or won't drink them then it will mean going to hospital to have IV glucose.
We now have direct access to our local hospital and various info to give them (as its so rare most Drs won't know how to treat it).
I'm feeling better about things, just nervous of the first time he gets ill (if he gets ill up until he is 4 months we have to go to hospital immediately).