Anxiously awaiting doctors appointment

I don’t know whether this belongs here and please delete if it doesn’t!

Roughly 2 weeks ago I found a lump on my breast/ nipple area. It was quite small but hard feeling so I gathered it was probably just a white head coming on. However, it has got quite a lot bigger, sore, itchy and feels different all together. It looks more fluid filled now although when I squeeze/ needle it nothing comes out bar a tiny bit of blood.

The doctors won’t see me for another few days and I’m in my head overthinking.

I was diagnosed with pcos at 14 but recently had blood tests and scans for maybe the 20th time, my ovaries are completely fine, they were described as being healthier than healthy and my hormones and other blood results came back completely normal bar my thyroid being 0.1 unit off overactive… I need to speak to the doctors about this but just focused on this lump right now.