question: My 6 yr old son has been sick numerous amount for the past 5 months. He often gets fevers for no reason, his tonsils have been enlarged for about 3 months, he has 2 nodes on the right side of his neck that are stuck together and enlarged, he has had a persistent cough for 2 weeks now, and he started having an upset stomach 5 days ago including vomiting and diarrhea. Should all of these symptoms be cause for concern?