I may have accidentally taken 2, 150mg iron pills (300mg in total) last night. i am 22 weighing about 140 lb. i didnt have any symptoms for almost 12 hours now other than stomach feeling a little weird. am i okay or should i seek medical help?

I don't consider the exposure if it happened worrisome. Other than mike your poop darker and giving you cramps, I doubt you will see any effect.

You are not at any risk of toxicity. If the stomach is upset, eat a little, like some ice cream. Unless you get more symptoms, there is no need to seek medical care. Get HPV vaccine. Wish you good health! Safe sex: https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines