What are some signs of endometriosis?

I’ve had 2 miscarriages in a year. I finally got my cycle 2 days ago since my miscarriage a month ago. My cramps aren’t unbearable but I have to have a heating pad on my stomach or take ibuprofen for at least the first 2 days of my cycle. I’m having gas pains and feeling it in my butt. Almost sharp shooting pains that just come and go super quick. Are these signs of endometriosis?