Endometriosis

So I need some advice I have sugary for stage 1 endometriosis a year and a half ago. And me and my husband have been trying for to have a baby for like a year. And this pay couple money I have this symptom where my vigina like burns after I owe and I feel like I have to pre all the time but I don't and my Dr tested my urin but everything came out negative so I don't have a bladder infection or UTI and I looked up and it can be a symptom of endometriosis. How long does it take for a cyst or endo to come back I need some advice