Yes that's normal, It feels like a bad case of dms if it's your first time injecting. I remember my first inject was in my quad, I don't know if it was my nerves or if I hit a nerve but half way through it I was getting really dizzy, and sweaty, I had almost passed out. I pulled it out with half left in the needle. Got an ice pack,changed up the needle, and pinned my same leg 10 mins later and finished up no problem. Left quad has never been a problem for me. Then 6 weeks in I was doing my right quad again, and the exact same thing started to happened. So I hammered down on the plunger and just got it all in right before I almost passed out again. I don't know why the hell I was having that problem but haven't had it since. Knock on Wood.