Whenever I drink anything that is high in caffeine or another stimulant get a terrible headache it normal to from caffeine?

Caffeine is a stimulant that can constrict blood vessels in your brain, temporarily reducing blood flow and causing a headache. This can be especially true for people who are already prone to headaches.

You can prevent caffeine headaches by limiting your intake to about 200 mg of caffeine per day, about the amount in two cups of coffee. If you already have a caffeine headache, you can usually treat it by drinking plenty of fluids and taking an over-the-counter pain reliever.

If you experience frequent caffeine headaches, it's important to talk to your doctor to rule out other potential causes. In some cases, caffeine headaches can be a sign of an underlying medical condition, such as a brain tumor or other neurological problem.