Should I Be Worried About Lymph Nodes With A Possibility Of Lupus?

Hi! I am a 29 year old female. A few weeks ago i went for a routine cbc and ekg which both came back slightly off Ekg reveals for the past few times a problem with my st-t depression(i had an episode a few years ago where large ammounts of cpk s wgere found in my blood) the docs did not have an answer. As for my recent blood tests Blood urea nitro 7l Mchc: 31 Lymphocytes; 55 Vldl and triglycerides verrry high My doc says i am ok and it could be lupus because i am a smoker?!?? Also i constantly have huge lymph nodes I am no doctor but his diagnosis doesn t feel right, my family history; everyone healthy weight but mother cardiac arrest, uncle reinal faillure causing death at 2 years old, father has pacemaker and cll , grand fTher, 2 stroles, other grand father died after 6th cardiac arrest Am i being paranoid? Thank you