These are the decisions that none of us ever want to make. GOD I HATE THIS COUNTRY SOMETIMES.
On the bright side, though, you know one time my son - about age 12 then - was vomiting like that for more than 24 hours. The doctor was completely dismissive; there was no suggestion of even bringing him to the office, let alone the ER. Finally (I think it was hysterical phone call number 4) he gave me a prescription for those phenergan suppositories and lo and behold, the kid was totally and completely fine 6 hours later and within 12 hours was begging for McDonalds.