Hi, I just took some larger acetaminophen tablets (equate 8hr arthritis pain relief 650mg) (all within the recommended dose) to treat my muscle pains and fever. The moment they kicked in, I was suddenly extremely drowsy, breaking into a cold sweat, with ears ringing, along with some fogginess. After these rather extreme symptoms subsided after maybe 30-60 seconds, I was left with some nausea. What in the world happened to me, and should I go to the E.R.?