The other day I tried to overdose on advil and it didn t work, but now I am experiencing nausea, vomiting, fatigue, confusion, and sleepiness. Each advil pill was 200mg per capsule, and I took about 15-20 of them. I don t remeber the exact number. I am worried now why am I experiencing that, it s been about 2 days since then and I feel like it s getting worse. What is happening?