I am 18-years-old. I weigh 125lbs. I accidentally hurt my finger about 30 minutes ago. Due to the amount of pain I was in, I took 4 Ibuprofen pills. I have a headache and I am still in pain. I do not want to accidentally overdose. I have a class at 9 tomorrow. What should I do?
You have taken enough of painkiller and still if it's paining then you need to consult a doctor. Do an x-ray and check there is no internal damage or hair line fracture.  If there is then get treated with orthopedic doctor and give rest to affected hand.  And if there is no fracture then orthopedic will guide you what to do next.  But ibuprofen you have taken enough, so I will not suggest taking further since it also have many side effects too. Take care.