Hey, Jen.
Yep, that's exactly what it is. Very normal; no need to call the nsg. The shunt acts like a barometer, and when there is a wild pressure change (or even a small one, depending on the individual patient's sensitivity), the result is often sudden, severe headache, with or without vomitting. I had them for years and now I get simple partial seizures from them. Give me the headaches any day.
My experience is that Tylenol does absolutely nothing. I don't take it for any kind of pain anymore, just fever (for which it's the best stuff in the house). The best thing to do is to have him lie down
on his shunt side for about an hour or so. This helps to equalize the gravity and level the pressure.
LIZARD, comin' up on 40 years (

) of living with hydro