So I have this cyst that comes and goes right between my thigh and lady part . It comes and goes I…

So I have this cyst that comes and goes right between my thigh and lady part . It comes and goes I noticed I just get it around my period . Now I just got this bump on the bottom of my butt like the crease . I'm thinking its a cyst not sure it hurts so bad and of course I didn't bring anything up to my doctors today smh