I get this as well depending on the injection site. I'm fairly athletic and don't have much to pinch. When I tried to put my levemir into my thigh I saw a big blob of clear liquid ooze out of my skin.
That one goes into my **** now, but I still get a drop of blood occaisionally, though it disappears under pressure. I'm not sure if down to the injection site or the steadiness of my hand?
Don't have so many problems with the novorapid into my stomach, but there's less contortion involved there.