My baby is six months old and is exclusively breastfed. Lately, I have noticed that he has been sweating profusely when he is being nursed. Initially, I thought that it could be because summer is setting in, but his breathing has become really rapid and he gasps a lot while nursing. He seems tired and often falls asleep in the middle of his feed. This is interrupting in the amount of milk he should be drinking. I am worried. Please advice.