Have you guys had any episode where it is really hard for the pin to get deep enough to inject? I have been working legs and glustes pretty intensely and today as I switched back to my right glute it seems as if I'm bumping against a wall when trying to get a pin in.

I've switched pins two times and every time I get it to pinch the skin it seems as if it bumps against very sensitive and tough tissue. I can also feel the mucel in my quads and butt to be harder than prior to this week, I guess at least I should be glad to see some good results so far

I might just switch back to my left glute but I would be interested to know if this is something common and if there's any technique or posture that helps with it.