Just did my 4th injection of text. The 3rd I noticed this too, but the 4th it was really bad. I am having trouble pushing the needle through my skin. Originallly it went right through no probs.
TOnight I was puching and pushing and it wouldn't go so I stopped and tried another spot. THe needle just pushes the skin in quite a ways then it "pops" and the needle goes in, nice little burn when it does. ONce in teh muscle it goes it great.
Is this normal? I read test causes the skin to thicken, could that be it after only 4 weeks?