Ok i'll re-explain myself. I did not reinject .5cc of blood back into my muscle. I aspirated and got probably .2-.3 ml's of blood. I then pushed that little bit of blood out of the needle until gear came out of the needle. Then i switched needles and pinned the gear. I saw absolutely no blood in the syringe although i'm sure there was a small amount left that was to small for the naked eye to see. This was on monday, and I had zero injection pain, and zero soarness the next day (I pinned 3cc's), and still have zero soreness. It's now friday night so i'm thinking i'm gonna live.
I would have never thought of injecting .5cc of blood back into a muscle, but was only asking if still using the gear after pushing the blood out was safe. After i posted i thought about it and figured that if there was any blood left in the syringe that it was such a small amount that it wouldn't hurt me. Now i know this may have not been the best idea, but i guess we all live and learn. To tell you the truth i would probably do the same thing over again.