PLEASE GIVE ME SOME ADVICE, MY 16WK OLD APPEARS TO BE TEETHING, RED CHEEKS, HOT TO TOUCH, V.RATTY ETC - TODAY HE HAS BEEN INCREDIBLY FUSSY OVER HIS MILK, ONLY TAKING 20 OUNCES (USUALLY HAS 30)HE WAS LOW YESTERDAY TOO BUT NOT SO DRASTICALLY. OTHERWISE IS VERY ALERT AND ACTIVE - SHOULD I BE WORRIED? HE ALSO HAD HIS FIRST SPOON OF BABY RICE TODAY - WOULD THAT AFFECT HIS NORMAL FEEDS?