What is wrong with my leg??

[MrsMaryBOOface]

Really don't want to be bothering the GP with this...

For a good few months, one of my legs has felt "thick" behind the knee. And I get a bubbling feeling going up the leg.
It feels worse at night. I can't cross my legs without feeling uncomfortable. It sometimes feels painful.

I have PCOS and I'm pretty sure I recently had a cyst burst but not confirmed.

I'm overweight but around a size 18 (tall) so not horrendous but aware needs sorting. (Difficult with PCOS)

There is a history of DVT in my family but I have no hot spot or anything??

It does sound like a cyst but it's best to speak to your GP. They are doing phone consultation and you can send them a photo of it.
Don't worry about calling them, they are still dealing with none covid issues.