Hi sorry for the long post.... 

I'm 42 and 6 years post menopause (full hysterectomy)

About a year ago I noticed a sore on my Vulvar but it seemed to come and go and every time it flared up a bit I thought it was maybe linked to sex or kinda just put it to the back of my mind. Then 3 weeks ago it flared up pretty bad so I went to the doctors who said it could possibly be LS or even genital psoriasis but they were not sure so referred me to dermatology (still waiting for appoint) over the last 3 weeks I've been back and forwards to doctors even ended up in A&E over Xmas as I've had really bad vulvar pain, itching, burning and my groin lymph nodes have been so painful. Doctors put me on antibiotics incase of infection but I've had 2 lots of antibiotics and it's still the same. 
I've been referred to gynaecology oncology but the appointment is not until 15th Jan. 

I don't know what to do now as my lymph nodes are so painful, I have pelvic pain, urinating a lot more, vulvar pain and I'm really scared I have cancer. 

Any advice of anything I can do whilst I'm waiting for my appointment on the 15th ? 
I don't exactly have much money (4 kids and healthcare worker) but I could perhaps have some tests done private ? If it would help ? Ultrasound of my lymph nodes ? Bloods ? MRI ? 

I'm just puzzled why my lymph nodes are so sore and painful if I don't have an infection. I'm driving myself crazy worrying.

Would anyone have any advice for me ? 

Thanks so much for reading x