So I injected tren and prop which came up to 2 ccs (100 mg tren/100 mg prop) into my right quad. I did everything as necessary and always aspirate. But I think I have a problem with these 25 g 1 inch needles as the lower part of the needle is all transparent orange. I aspirated and saw a bubble come in ok didn't see any blood then 3/4s into the injection I suddenly see something very dark go into the needle...that was definitely blood and stopped injecting. I don't get how that happened. I went through about 10 minutes of violent coughing that almost stopped my breathing, I became very shaky and starting sweating profusely. Now that it has all resided, I'm just dizzy as hell and my chest hurts from all that violently painful coughing. How do I prevent this from happening again? And why would the blood show up later in an injection? That makes no sense to me...unless the dark orange transparent lower part of the needle head was making it harder to see the blood in the first place. That really sucked and I was ready to call the hospital but it all started to calm down and I didn't. Now I just feel like crap. Any suggestions and advice would be appreciated.