Does this sound like endo

Since I was about 14 I had severe periods lasting 7-10 days and the pain was so horrific I would be doubled over then vomiting, pretty much pass out every month. This pain has always been on my right side
I had kids and it got better.
It’s now returned worse than ever, I’m in daily pain now and the vomiting / pain comes again.
The pain is almost identical to labour contractions and then I break into a hot sweat and go clammy and pass out.
I’ve had a hysteroscopy as I went through the menopause young and am now due a laparoscopy.
Does the contraction type pain always on my right sound like endo, I really am nervous about having a laparoscopy in case they find nothing as it’s been going on years