how much coffee is too much?

so i didnt really sleep lastnight and got carried away with a book i just got (its the jane austin novels from costco). i was up will sunrise and got like an hour maybe but it was peacefully (lies) broken by my little sister. anywayysss, i had like three big mugs of black coffee and im not sure if thats too much, i also had like two doses of advil to stop my headache. if im like on my deathbed someone please let me know!

Xx

~Ezzie