Even a doctor wouldn't be able answer that question without
further testing, and I'm not a doctor.

I know how anxious you are about this.  Why not call and see if
you can get in to see the specialist sooner - even if that means
they contact you in the event there's a cancellation?  Explain
your situation to the specialists head nurse.  They may have
scheduled you two weeks out not knowing the circumstances.

It is impossible to say without knowing more but from what you have said it
doesn't sound like mesothelioma (which is usually a thickening of the lining
of the lung) and definately isn't a pleural effusion (that is something else
altogether). Asbestosis is usually a diffuse infiltrate and not nodules. Of
course, it could still be a lung cancer related to the asbestos (or not
related) so you should have them followed up.

Most nodules turn out to be either something treatable or nothing at all.
However, there are quite a few things that you would want to find out about
sooner rather than later. The first thing the pulmonologist is going to want
is a high resolution CT of the lungs so you may want to hint to your regular
doc that the initial consultation might be more productive if you show up
with that instead of just the x-ray. From there, depending on a number of
factors, the pulm will want to either just watch them, do a PET scan, or try
to get a biopsy. If he suspects things like rheumatoid arthritis, lupus,
lymphoma, sarcoid, or fungal infections he may order some blood and urine
tests. If possible try to make the appointment on a Monday through Wednesday
so that he can put a TB test on you (they have to be read int he office two
days later).

Try not to worry. The vast majority of these things turn out to be nothing -
but do get it checked out.

BTW - not to concern you any further but - asbestos exposure is also a risk
factor for colon cancer so make sure your docs know about it and are keeping
you up to date on colon screening.