Thank you for your input, Tom. My doctor, who is usually very personable and willing to sit down an talk with me, was just coming off a week long vacation, was running late, and was also not feeling well when I saw him, so I didn't want to pepper him with questions. I appreciate your experience and thoughts. It helps a great deal to know more on EBUS procedure. The nurse for the pulmonalogist (he is doing the procedure) did say I would be under a general anesthesia, which makes it a little less anxiety producing to know.
I think what concerns me, is that the lymph node enlarged during the interim, when I had not been ill. If it had remained stable as the other, I don't think it would concern me as much. I did have a significant lung infection in September of 2015 that required 5 days in the hospital. I did repeated rounds of antibiotics through February. I suppose it is possible and logical the infection didn't completely resolve, and I am relapsing into it & it just isn't causing symptoms yet, which I had not previously considered.
Thanks again!