Omg red stool?! plz help!?

Ok i the last two times i used the bathroom my stool was red! My stomach was hurting, i had gas and i was just having a real bad bowel movement. Yesterday I did eat a big bag of red hot cheetos (chips). So do you think my stool was red because of the bag of chips or could it be blood? This has happened once before and it was even redder but I think it may have once again been chips but idk. I never heard of stool having alot of red in it. Im scared should I go to the doctor? Help!