I asked for my thyroid levels to be tested again and once again they came back normal. I asked the nurse what the actual levels are and she told me 0.74. I know that here in the UK they can come back 'normal' and still be regarded as low by the standards of other countries eg in the US they can be viewed as low.
Looking online I am assuming that this is the test I had because these were the only numbers that fit:
'If your doctor ran a test called Free T4, or Free Thyroxine, normal range is approximately 0.7 to 2.0. If your result was less than 0.7, your doctor might consider that indicative of hypothyroidism'
So if this is the case it seems that I'm at the very low end of normal. I would love to know others experiences eg what your levels are, whether you've been prescribed anything (even if in normal range), what you prescribed and whether it helped. And did you have to push for it.