endometriosis help?

hi all, im comming here to ask about peoples first had experiences of endometriosis. i think i may have this, i have all thr symptoms googles says and went to the doctors about this time last last year with a few of the symptoms and was diagnosed with irratable bowl syndrome. athought i think it isnt that, i think its endometriosis. i stopped my pill in about march and since then my symptoms have just got worse. my avarge cycle is 31 days, week one no symptoms, or light belly ache cramps, week 2 cramps on and off hurting more, mood swings and extream pain during ovulation, week 3 head aches, mood swings, back ache, on and of cramps. week 4 period week all of the same symptoms above but that bit worse and with heavy bleeding. then back to week one, so really i only feel semi normal for week!! only 1!! im currently trying to convince and am 22. the symptoms im experiencing are getting me down that much and effecting my life that im concidering going back onto the pill 😭