He had his TSH tested (by ticking the box himself ) and it was 2.51 (0.02-4,0)
He's always tired, has brain fog, has recently started to gain a little weight (not much, but he's built like a whippet and only has to think about missing food to lose weight normally).
His B12 was low too, Something like 340.
I've got him on B12, but so far no improvement. What do you guys think? Obviously GP says all results normal ...