Last night, I was starting to do an injection in my right butt cheek. As the needle went in about 1/2 inch, I started to feel that I hit a vein or something. I tried to pull out just a hair, readjust the needle position and push through but felt I was still hitting something. I pulled the needle out and of course blood came out after that.

I then moved the needle down to another position about 1/2 inch away and injected. When I pulled out, some blood followed and within 5 seconds started coughing. Within 20 seconds the coughing became very bad and more like hacking. I went into my room to lay down but started getting cold sweats and the hacking got worse to the point where I thought I was going to throw up. Ran to bathroom and threw up blood.

After a few minutes, the coughing stopped but I still felt terrible. Throughout the night, got both cold and hot spells and had a lot of trouble sleeping. Today, I feel as though I don't have a muscle in me. Feel so weak.

I am guessing that I injected into a vein. If so, what is happening and did I waste my gear?