Brown Discharge(smelly)

Hi i am new here hope its ok to post and seek some advice. so my issues started on the 17th july i woke up with brown blood stained underwear had no pain then went to see my gp refered me for a smear with cervical check ireland they only checked for hpv no hpv found. then 2 weeks after that i started developing pelvic pain i have had an an ultrasound which found hydrophonisis of left kidney, had an mri tehn and it showed i have kidney cysts. Seen a gyncologist privately as i couldnt get a public apointment she did an ultrasound and said i have a 4cm fibroid but i knew i had the fiboird for a couple of years before that, and it never caused me any problems before. i asked her for a colposcopy and she said my cervix looks fine and she would have seen something on ultrasound. I am really concerneced that it could be cancer i have 5 year old twins, and im very frightened. i also have painfull intimacy and bleeding on ocassion after intimacy. I am aleays tired and have lost nearly 10kg in 2 months, and have also developed rectum pain. Thank you for any advice or information.