I have had what I thought was 1 swollen lymphnode

Patient: I have had what I thought was 1 swollen lymphnode under my armpit for 6 weeks now.. Went N got an Ultrasound today to find out there is 3 swollen lymphnodes instead of one. Started out non painful N are now very painful. I get the depo shot for birth control am 27 yrs old and have been bleeding (spotting brown blood N red sometimes) excpecially after Intercourse. I have had night sweats since the start and have been very fatigued… Doctor I seen today wants to wait it sounds like another 4 wks. I haven’t taken any antibiotics yet but am getting worried on why this is going on. No Infections or illnesses either. Worried I guess

Doctor: