This is a the results and update of what the blue horizon doctor said. Still none the wiser. He has never taken any thyroid medications at all. And although his tsh is in range most ot the time it's really low I think know. And whst to do about it including the high cortisol. Thank you and if you need to see the other results they are on my previous post.
Thank you in advance x
UPDATE
My husband just had some tests back from Blue Horizon.
I will add the Doctors comments and put the results up. Any comments very welcome.
Thank you X
Here are comments from our resident doctor regarding your results:
The free T4 level is low. In the presence of a normal thyroid stimulating hormone level (TSH), and normal free T3 level it would not surprise me to learn you are taking liothyronine (T3) instead of levothyroxine - is this the case? If you are taking a form of thyroxine medication already, you may need to adjust your dose – a discussion with your usual doctor would be sensible. If not, I also suggest you make an appointment to see your doctor – at least surveillance of thyroid function would be wise, as it would seem in this scenario that an underactive thyroid gland might be developing.
The serum cortisol is on the high side. Cortisol rises in response to stress, but it will also rise in those taking steroids (even as creams or asthma inhalers). Persistently raised cortisol levels may indicate underlying Cushing's disease, but further testing would be required to diagnose (or rule out) this condition. Repeat testing would be advisable to determine whether it is a sustained rise, and you may wish to consider 24 hour testing of saliva cortisol levels (via a home testing kit).
The active vitamin B12 level is low. This suggests that you are deficient in vitamin B12. Persistently low Vitamin B12 levels can lead to Pernicious Anaemia (PA), a state of deficiency of the red blood cells in which there is reduced quality and number. Characteristically, the red blood cells are
are enlarged in this state (if the deficiency is severe and longstanding). Vitamin B12 is commonly found in many foods, particularly meats. Deficiency can develop if intake of the vitamin is reduced or if absorption from the gut is impaired. Poor absorption owing to a deficiency of Intrinsic Factor (IF) is the underlying reason for PA. Vitamin B12 deficiency in the longer run can lead
to nervous system disorders – with sensation changes, loss of power or co-ordination, gut disorders and (rarely) dementia or mental illness. Lower level deficiency has been associated with a range of symptoms such as fatigue, memory impairment, irritability, depression and personality changes. Please discuss this finding with your usual doctor as further investigation (including testing homocysteine and methylmalonic acid (MMA) levels), and supplementation, may be advisable.
Two of the substances in the sample (ferritin and folate) have been affected by haemolysis (destruction of red blood cells).
Sometimes, slow drawing of the sample into the tube, or a delay in processing, can result in damage of the red blood cells. Repeat sampling will be necessary I'm afraid if these levels need to be known - please contact our office if this is the case.
Help with test results please lovely experts.
Advice please - Are levels low enough for nhs help or should I buy supplements? 
Test results back from Medichecks - can anyone please help advise on next steps?
