I had mine done after 4 months and mine was 3. I had to have a repeat test as my GP wasn't happy, despite me feeling better than I have in years, when it was done 2 weeks later it was 1.8 and she still wasn't happy.
I think the ranges vary, depending on who is doing it, my GP told me it should be between 0.1 and 1.4, but I've seen others say 1.8 for the highest.
You'll proably find if you have it tested again it will be completely different.
I'm preparing for a battle with my GP next month when I need a new prescription, as I want to get it on the NHS and not have to pay £100's again.
Good luck!
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