Hi, I discovered a hard pea sized lump in my left armpit, I had an ultrasound and was told I had normal reactive lymph nodes, this was back in May 21. 
it's now December and it's still the same. I have kept a check on it and it has never gone.

Should I still be concerned? I have drenching night sweats for some time along with tiredness and itchy skin particularly my legs which is often worse at night.  As I am 42 the sweats have been put down to Peri-menopause although I am not now convinced. I haven't lost weight in fact I have gained a little and have regular upset tummies which I put down to my IBS.

I have unexplained low kidney function (gfr between 50-60) and am under the care of a nephrologist.

I understand I am probably over anxious, but wondered if I should push for a biopsy?

any advice would be appreciated