1) If you're skinny enough, yes. If you have junk in the trunk, opt for a 1.5" needle.
2) If you shake the needle all over the place while it's in you, maybe. I hope you're injecting in the outer upper quadrant of your glute.
True I use to get pain but I thought maybe he hit his tailbone
Ya glutes are def big lol so maybe need to resort to quads, and ive had people do it for me so far and they have been really steady and put it in the upper right/left depending on side
Just remember to pin the vastus lateralis (upper, outer edge of the quad) and avoid the top. You will probably be sore, but I prefer quads to glutes any day of the week once you get the hang of it.Bhrees posted a really good link if you're not sure where to pin safely.
hurts to move in any direction, to touch, even when a book bag touches it, still hurts