Surgery or not? WWYD?

I’ve been having health issues for years that leave me feeling dismissed and with more questions than answers. I’ve had GI problems for a long time but recently they are getting increasingly worse, especially around my period. My periods lately have been out of control heavy, painful, many large clots. BMs have me in tears while I’m on my period. My newest symptom is now painful sex. My ferritin is extremely low as is my Vit D. Yesterday I went to the gyn for the painful periods and sex. My ultrasound was completely normal. I burst out in tears when she told me despite knowing they can show nothing because I am just tired of never getting any sort of answer for the pain I live in. However upon completely the pelvic exam (which was extremely painful btw) she said she does think she can feel some spots that have endometriosis. She gave me two options. Try birth control or do a laparoscopy. I have tried a ton of birth control over the years and I always have a negative reaction to it. I genuinely don’t know what to do. But I am scared of surgery especially with the chance of them finding nothing. What would you or have you done in this situation?