I’m a worrier

I'm a worrier and to cut a long story short I have a lump in my armpit and a petechial rash on my chest. 
 

my bloods are abnormal and I have blood in my urine. I'm going for an ultrasound on the lump tomorrow as well as further blood tests. 
 

Has anyone had anything similar? I just don't want to feel alone no matter what this all turns out to be. 
 

Does anyone have advice for this limbo stage?