OK I am using the serono kits. Well I am on my 3rd vial and I have taken 8iu's out of it so far. I went to take 4 more ius and it stung like hell. I figure well maybe that place is a little bruised so I tried a place I never used in the stomach and same thing. Can anyone tell me what this may be? I alwyz use the waters that comes with the kits as I have for the last 5 months. This is weird cause I use only seros and this is the first time it ever happerned.
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