Hi, I am an 18 year old woman and woke up with what I thought was stomach pain today. It seems I have pin pointed it out to be lower left abdomen. I am in college and under a lot of stress. I rarely get a good night of sleep and may have small anxiety problems. I have been having tight chest pain also symptoms of acid reflux, heartburn, or an ulcer possibly. I am on birth control. Getting my period this week but doesn't feel like cramps. I have looked up IBS and have those symptoms but the pain persists even after defacation. Any; idea on how to treat? Or what it could be? Thank you