Im a skinny nerd who lifted heavy weights 2 days in a row to get buff, now I can hardly move my arms. Is this bad?
probably
How will you do your calculus?
no, just means you overworked your arms... what doesn't kill you only makes you stronger... and possibly ruins your joints
do squatz next time
drink some protein shake and relax for 3 days. maybe jog
shoot yourself because i hate you and your stupid questions.
that pain was some of your weakness dieing, and now you are stronger
It depends on what the pain is. If it's just sore, that's fine and normal. If your muscles are so incredibly tight that you literally cannot bend them, then you might be looking at a muscle pull.