What Causes Wheezing In A Baby While Breathing?

Hi, may I answer your health queries right now ? Please type your query here... My 15 month old baby is wheezing when he breathes., he has no fever his heartbeat is normal but his breathing sounds terrible. He is very uncomfortable and doesn t stop crying, he also has diarrhea. Should I take him to the emergency rol or wait until the morning and take him go his pediatrician?