First off what gauge needle did you use? I usually use a 23gx1.5" for quads but am switching to 1" after today. I use 23gx1.5" for glutes. Usually when I inject you can feel it hitting the muscle. If you struck a nerve you would automatically know b/c your leg would twitch like crazy. Secondly, did you aspirate? I know this might not prove you went in deep enough but just wondering if you did or not. I'm not sure what would happen if you didn't go deep enough but I'd almost assume a build up of the oil would happen. NOt saying it will though, it's just my assumption. Anyway, if you used a 1" you would have to use the whole thing but if you had a 1.5 you should be good. Hope this helps.