of course it feels pain every breathing thing feels pain . this looks very bad and if not treated the snake will get septicemia and the snake will die witch is not fair . if you cant afford vet bills you should not have the snake . if it was you and you needed treatment your mum wouldent say i cant afford it . talk to a vet and ask 4 help or give to some1 who can afford it or find a rescue centre . goodluck