I just did my second injection of test-c (in the quad)and on my first attempt I stuck the needle in and was about half way down (i'm using 25g 1.5 inch) and I felt like a sting and it kinda freaked me out so I pull the needle out and move the injection site over about an inch and felt a sting their to so I keep going and I pulled on the plunger to see if it drew any blood and it didn't. My question is with a 25g will blood even draw up into the syringe if I did hit a blood vessel. I have to apply a good bit of pressure to inject my test-c and it injects really slow.