Is it normal to feel kinda sore after singing?

I believe it is not normal. I happens to me too when I sing too long. That meant you are singing using your lung/air page instead of diaphram. Of course I'm pretty much self taught in singing (obviously I don't sing well enough) so it still happens to me sometimes, but I've been actively trying to figure out a way on how to sing correctly and have achieve a bit of success so at least it that type of thing doesn't happen for too lmany times.