Ok i read somewhere that it is not good to use vet syringes. Is this true? I've been using 1' 22g needles from atwoods (animal stuff) to inject in my glutes for 2 weeks now. Is this a problem. Is this why i have knots from both of my shots. They are pretty big and i have changed cheeks each time. I rub on them all the time. The don't go away. I'm kinda starting to get worried. Should i inject in my delts instead? Oh yeah i use the same syringe when i inject but a different needle every time. Do i need to be changing syringes too?