I am a 28 yr old african american female who has never had pain like this before but about 1 1/2 months ago I was having front chest pain and the pain was in the same area in my back like it went from the front to my back, that lasted for a few days and finally went away, but then last tuesday I started having pain back in my chest but not in my back ,it felt like my body kept trying to swallow or make something go down that was to big to go down over and over again at the top of my chest and i wasn't even eating or drinking anything and I mean it was hurting bad it scared me, it started aroung 6pm and lasted until about 5:30 in the morning, and I knew it could not have been lunch because it just started all of a sudden and I had lunch around 1:30p.m. that day, so I finally went to get a physical today and i told the dr. about my problems and she said it sounded like i had acid reflux and gave me a prescription to take zantac 150mg once daily for 30 days, but i'm scared to take medicine when i don't know for sure that's why i was having pain, I thought i was going to be referred to another Dr. or get sent to have some x-rays taken but that wasn't the case, i don't feel it's safe to take medicine for something i might not have for sure, I think i should go to the emergency room so that i can have tests and x-rays done so they can look in side my body to make sure everything ok inside, or go to a physician that practices cardiology or gastroenterology to be checked out before taken any medicine, what do you Doctors, experts, and community members think, Please respond back as soon as possible--------Thanks!(the Dr. also wrote in my file the following GERD and Obesity)