Hello! After an ultrasound yesterday I've found there is an enlarged , swallen lymph node under my armpit. 7mm measures 

Also on blood test the lymphocytes are slightly higher, normal range 1.1 - 3.6 , mine was 4 

I am also 6 months postpartum, stopped breastfeeding at around 4 months and a half and also my period is late 22 days.

Ladies I am freaking out here. My mind is filled with worst case scenarios and I cannot relax myself. Im waking up crying and im falling asleep crying and praying that is not something serious. Doctor said I should go for a biopsy. Any similar cases? Can you please share with me your stories? 

Thank you !