I understand ur frustration Meg, there were times when I was using the monitor and I never thought I was going to get a 'High' reading.
I went about 8 or 9 days before I got a 'High' reading and I was having CM changes, but the monitor never picked that up.
I would say that the Lap has thrown off ur cy this month, so try and have patience, u will O hon, just give it some time

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Keep us posted ok