Endometriosis, Help

Abbie
This will be long and I'm not sure where to put this but I'll have a shot anyways
I am a bit concerned that I may have endometriosis. I had gone to the doctors around 2 months ago and he said that at that point in time there was nothing to worry about because my "symptoms" were not regular enough. These are my symptoms;
• I get like sharp pains going from my belly button down to my vagina (generally a week before my period comes, might I add I'm on the pill) getting worse if I stretch
• at the moment I am having kind of aching pain in the lower part of my vagina everyone day or couple of days
• 2 days ago I have a some lower abdomen (like I had been working out or doing sit ups and working muscles I haven't used it a while, but I hadn't been) and it hurt more if I moved a certain way or stretch
• I have had pains like I was getting my period every though I finished in on Sunday (10th July) 
So my question is, for you ladies/girls that have been diagnosed what were your symptoms and how did you know that you needed to see a doctor. I'm worried I'm over reacting and am just paranoid about it 
Your input will be much let appreciated! 💕