I'm not going to fight my corner too hard as some decisions made can be wrong in retrospect and working to a fairly rigid set of rules can lead to the medical-mafia appearing, well, rigid.
An under (or over) active thyroid can have subtle effects on mental functioning. These are often not appreciated by the sufferer at the time. Many patients with treated thyroid disease will admit that they now realise how slow they were when diagnosed.
We try and avoid putting people who are not fit into situations were we would expect them to perform at their best or crash and burn. (note to self, trot out mantra. Duty of care. Duty of Care)
For the benefit of stray fin and others, the SMO does not have access to any slush fund that would pay for private treatment. The Staish might, SAR Force Commander might but not the SMO. Us poor suckers are stuck with referring you to the NHS and then apologising for the poor service it gives.
One thing that might be worth bringing up is the priority system for MDHU referrals. The priorities 1, 2 and 3 (without my crib sheet and trying to translate into aircrew terms from memory 1= aircrew at readiness to deploy. 2= other operational aircrew and aircrew in training) The agreement with the MDHUs which I presume still stands, it's been around for years, was P1 couple of days, P2 couple of weeks P3 couple of months.
NB this is referrals to MDHUs not all NHS hospitals. NB2 it is for conditions that affect operational fitness. No matter how baggy you face you'll still wait for your face-lift.
Good advice from Mrs Bush. note the be nice comment. the last thing I need if I'm trying my best to help is you getting arsey.