On Jan 20th My 4 Month Baby Had Open Heart

On jan 20th my 4 month baby had open heart surgery (tetrallogy of fallot) we are home now and he keeps wheezing Very hard that sounds like a grown up snoring we have also noticed he keeps waking up and it seems like he has a hard time breathing his ribs keep going inn when he tries to breath it lasts couple min then stops and then starts again his apt check up is feb2 do i wait or take him now is this normal after surgery