Should i go to the er if i have chest pain a headache a low heart rate and dizziness?

Definitely: Although you are young, I think you should be checked because of chest pain and low heart rate and dizziness. You need to be checked for cardiac arrythmia, low blood pressure or blood clot.

Potentially serious: If your symptoms have never occurred before and/or never been looked at by medical personnel then, I believe you should be seen right away in a medical setting especially if you've also taken acetaminophen and Ibuprofen for pain or any other reasons which you mention in your profile. All the best.