[netcraft]

I recently had a nuclear stress test where they injected me with a radioactive tracer through an IV. The nurse told me that sometimes it can give you a pretty wicked headache and to let them know if I started having any pain and they would give me caffeine through my IV. I had needed to abstain from any caffeine for 24-48 hours ahead of the test so this was surprising to me - but luckily I didn't need it through the IV. But I really wondered what it would feel like...