The vet said she could feel changes in his trachea already since he had stayed there , this tumor was very aggressive , as most chest and lung ones are . Boy they can go down quickly , and with not much warning ahead of time . However , I ' m very glad we were able to stop his suffering , it 's just not fair to feel badly all the time .

Question: Why does the man not have much time to live ?
Answer: Their infection is spreading .Their infection is aggressive .Their diabetes is getting bad .Their cancer is getting bad .