16 Month Old Throwing Up

When you find a hospital with an "ask a nurse" line place the phone number in a prominent place where you can find it anytime. Call today to the line and get to know whether you have a real problem for it's normal.
Also for great help as your child gets older and gets into things you can't imagine he might find and keep the number of the national poison control line.
My neighbor's child fed herself an entire bottle of aspirin. How she got the lid off nobody knows. We lived way out in the country.When the nurse told her to make her 2 yr old vomit (sometimes you should not have them vomit) she drove right over to me as she knew I would stock Ipecach (sp) syrup. I always keep every thing around for an emergency medical kit. Every mother should have one.
I know I answered more than the question. However, you can keep the information for future reference.

does he have any congestion? they say to hold off the milk when they have too much mucus it just makes it worse.

sounds like Noravirus. It's very contageous. You either have diarrhea or throwing up. It gets better, but your son is still highly contageous for 48 hours after he last gets sick and for 2 weeks afterwards. Go to Whole Food and get some probiotics for him. He'll feel better. While you are there, get some for everyone else in the family and start taking them now.

We were told 1 kid at daycare threw up and by the 3rd day everyone and their parents came down with it. From day 1, I started giving my kids probiotics and my son and I only had cramping. My daughter refused to drink her milk which contained the powder from the probiotics and ended up throwing up 1 day later. My husband took them and only had the runs. While he's sick, he wont be very hungry, just make sure he drinks plenty of gatoraid/pedialite.

Good luck.

theres a stomachvirus going around that is my bet. he also may just be teething 2 yr molars or others. I wouldnt be quick to pull him off of milk for somethingthat could be a 24 hr virus.

I am not a Doctor and I don't play one on TV...however, if there is an absence of diarehha I might wonder if he has had colds recently.

My kids have had colds that are so bad that mucus builds up in the stomach and towards the end of said cold, they puke. Not related to fever, milk etc...related directly to mucus. It happens whenever it is bad...not all the time.

If she is seeming gaunt, listless, or sick, take her to the er. If not, I imagine your doctor won't be terribly worried unless there are other issues.

All the best!