I would tell your mom what's going on.
It may just be nothing but anxiety
, but you need to talk to a physician about it to make sure.
It isn't normal to have any sort of pain like that.
Though, it is probably related to a lung issue or your diaphragm, it needs to be checked out.
Please talk to your mom and doc about this so you start to feel better, and you make sure there is nothing wrong.