Has he had an ear infection? Does he have a fever that spikes and drops? MY daughter got very sick, like your son. I took her to the hospital MANY times and eventually they told me I was paranoid. Well the next day my daughter was in the emergency room and they did a spinal tap, she had spinal meningitis. Her ear infections had spread to her brain and into her spinal fluids. A baby can't tell you the normal symptoms. They said her ears looked fine, her throat looked fine, her chest sounded fine an therfore she was fine. but she wasn't fine. She was only 15 months old and my husband and I were told to prepare funeral arrangements. A friend asked if her church could pray for our daughter,I said yes because I needed a miracle. Two weeks later my daughter was released from the hospital with not one complication left over from this illness the doctors said she would not survive. I knew her recovery was a miracle of God and decided to pay a visit to this church and thank them for their prayers. When I got there, it was different than anything I had ever experienced. I could feel God's presence and it felt good. I realized that I owed thanks to God and when the alter call came I did just that, I thanked him, asked him to forgive me and gave my life wholely to him. It has been a struggle to live a Christian life but without God I was only ruining my life. I thank God everyday for not only my daughter, but for the new life he has given to me and my family.
PLEASE, don't just brush this under the table, mother's know best. Pray for your son, and continue to "bug" the doctors. This is your babies life we are talking about.