I can't comment not he chemo though I am sure someone here can. Welcome I am sorry that circumstances bring you here. Where are you being treated? and is the mass in your throat confirmed by biopsy? I would ask about a potential neck dissection and then follow up with more radiation and possibly targeted therapy for the two spots in your lung (of course you need a cancer confirmation, and possibly a second opinion .. Take care I'm sure someone else will be along as well