question: tonight for the first time i noticed a 5cmx3cm protruding lump in the right groin of my 7 week old son, only when he cries, when is calm its not protruding but you can still feel  the lump.  this past week, i noted an increase in fussiness, diarrhea and he has ran a low grade fever of 99.9. i think he might have a hernia. Do you think its ok to wait  to take him to see his md onn monday, or should i take him to the er now??