I'm 23 years old not in a relationship, never been pregnant and have not been sexually active for 6months. (I just thought I put it out there) and I have extremely irregular periods. 

My periods started at 10 I would have a period every 2months, after 5 years I started getting irregular periods where I would have a period every 3, 6 or 8months. Then around 16,17,18 I would have a period for up to 3 months in winter and in the spring summer months I would only have three periods. 

After that I would get a period every two three four months. Max 4 periods every month. 

However my problem is since January 2020 I have had continuous bleeding and still am. It started off as light, medium and by the end of February it was light and I was expecting it to end, but in March my period got heavy and it still is. 

I have clots and let me tell you I have gone through a lot of pads. 

Also during this whole time I have had pain in my waist, legs and stomach. I have gained weight, I am always so exhausted because of all the blood I'm losing. 

I started norethisterone 5mg on the 15 April and it did help the flow but it caused migraines so had to stop. 

I have now started cerazette 75mcg but the bleeding has gotten so heavy and the clots are extremely heavy and thick. 

I have pcos and the reason why I have not started the combi pill but only progesterone pill because I was on it at 17 and 10kg which I have struggled to lose since. 

Does anybody have any advice or has anybody gone through this? I am worried that I have some bigger problem that doctors are missing because I am not 'trying for a baby'. I am really worried that when in the future I do try for a baby it will turn out I can't have a child. Also, I know this might sound silly but I really don't want this to cause me to have some type of cancer in the future.

Please can someone help. I am desperate.