Thank you - I had my visa interview last week though where I was approved so really happy about that! When I did ask medical related queries when on the phone to Visa Medicals before my medical appointment they were generally able to advise on most things but one or 2 people did say that they didn't want to advise on medical queries as they weren't medically qualified and that it was better to speak to the nurse.
You could still try calling them and they may take your details and then ask a nurse and then call you back or you could email them?