Hi I have several medical conditions. I am 29yrs old and at 27yrs of age a massive blood clot fused my left ventricle and I was 6days undiagnosed so anyway thats caused lots of problems but the the respitory team came to see me in the hospital saying that id swollen Lymph nodes in my lungs and over the yr an a half they have grown I had a biopsy last June and it all came back clear but then they brought me back in Jan 31st for another CT Scan to monitor the lymph nodes but about a month or so ago I sweat alot and I get a rash but ive swollen lumps under both my armpits are they swollen lymph nodes and should I be worried???