Thickened endometrial lining

I have passed out from pain a few times recently. The second time I was seen at A&E they did scans. They suspected a ruptured ovarian cyst as I have had this before and have suspected PCPS. They couldn’t see anything on the ovaries but found a large fibroid and thickened endometrial lining (21mm). I have been given a standard referral to gynaecology- not a 2 week pathway. I have received the referral and it is showing as 17 weeks which is really worrying me after having done some reading about measurements and likely prognosis. Should I be pushing to be seen more quickly? I am pre-menopausal and so I don’t take any HRT. Periods fairly heavy but a regular cycle. Big issues with bladder leakage and trouble passing water and have suffered with severe constipation for the last couple of years. I am 46 and have had three children. I am not overweight. Any advice or words of wisdom appreciated. Thank you.