Matty Mooling

i've had my 03 protege es for about 5 months now and pretty much ever since i got it i noticed that it doesn't shift very smoothly with the automatic transmission. i dunno if this is just the way that it is or if there is something wrong with the transmission. just recently i noticed that when it shifts from 1st to 2nd the rpms are going higher than they used too. is this something i should worry about or should i get it checked out?