Irregular spotting

Hi I’m just wondering weather anyone else has had this I do have PCOS so this could have a lot to do with it but it’s driving me mad! I had my little girl 02/08/2020 via c section

My periods have been regular each month wouldn’t say bang on but I have been having a period every month

So on the 18th February I started to spot so I thought my period was coming it never did I just continued to spot from the 18th till the 21st and then it completely stopped

On the 1st March I started spotting again and it’s still happening now it’s not enough for a pad or Evan a panti liner it’s just there each time I use the rest room 🤦🏻‍♀️

I’m not pregnant as I have took so many tests all BFN’S! I’ve rang my doctor but they won’t see me only telephone consultations because of Covid so he has put me back on metformin as I was on that before i got pregnant with my daughter and he just said if it continues for me to call back so I’ve tried to call back again today and there is no appointments for me until Friday so just thought I would see if anyone has had anything like this before after having a baby or with PCOS?

Thank you x