My newborns sweating ALOT?

my baby is 2 weeks old. he got circised on friday. iv been putting Vaseline on his diaper like the doctor told me too, i also have been giving him some infant pain reliever, but only a couple times. ever since friday my baby has been sweating like crazy! his whole back will get dripping wet, and i have to change him over and over. i took him to the hospital today and they were not concerned about it, but it just seems weird he is sweating so much has anyone else experienced this with their newborn baby? also i do not put alot of clothing on him, he is not over heated, and i dont have the house too warm.