Hi, i think i might have possibly injected half a ml out of 4 in a vein. I aspirated when i injected and there was no blood. But i drew the syringe like 5mm out unintentionally and put like half a ml in and when i took the syringe out there came a lot of blood down my glute and i got a pretty bad cough for about 2minutes. Is there any danger? I'm fine now and my friend says it happens sometimes to him and its fine but im not sure.
Thanks in advance