Three weeks ago i went to hospital emergency.I had sever pain between my shoulder blades and chest.At first i thought it was a flair up with my artheritis.By 3 am i couldnt breath and was covered with a non itchy rash from head to to.It was very red and a bit raised but more flat.I was ut in ICU put on oxigen and had numerous blood tests an xray and ct scan.My oxigen levels were at 50%.They told me i had inflamitory lung cancer.Since then i have been to an internalist specialist and a chest surgeon.They are going to do a biopsy soon.This doctor said its either lymphoma or sarcoidosis.What do u think with my symptoms?Im still on oxigen and have no energy.The rash is gone and have no big weight difference. thankyou