"Nightmare trying to see a doctor or even get a..."
Once you see a doctor or nurse you cannot fault treatment or how you are dealt with.
Frustration can be ever getting to actually see a doctor if that's what you really want and sometimes after considerable difficulty trying to get through on the phone you may well find you cannot even get a telephone appointment with a doctor- they get full too.
Receptionist's must get frustrated along with the patient which sometimes means they adopt 'robot' mode and fail to grasp the real seriousness of the situation for the patient.
If you are unwell the stress and uncertainty can make you feel worse.