I'm a teenage girl having lower abdominal pain... PLEASE read on! This is not normal. What's going on?

Sounds like you've already done the proper thing and consulted your doctor. There are a whole host of issues that can cause lower abdominal pain in a woman. Your doctors have already ruled out the most common. Modern laparoscopy is a relatively non-invasive procedure compared to what was done years ago, and will leave very minimal scarring. I think that is a very appropriate next step to help identify the source of the pain.