Urgent!!! Very worried!?

Last night I took 4 Tylenol Extra Strength rapid release gels, each with 500mg Acetaminophen, so it adds up to 2000mg. This was a very stupid thing to do. I called the hospital and they sent me to a medical hotline. I talked to a nurse for a while and explained my condition, how many capsules I took, the amount of Acetaminophen in each. She ured me that all should be fine so long as I dont take any more Tylenol or anything with Acetaminophen for 8-24 hours. My question is, should I still be worried?