My dad Stage 3B squamous cell carcinoma

read a lot of posts here and this is the first time I have posted but things keep getting stranger and stranger...My Dad who is 70 years old and has parkinsons disease was diagnosed in Dec. of 2008 with nsclc stage 3B in Jan. 2009 he had a lung resection...the removed the lower half of his right lung..he had tumors in his lymph nodes that they couldn't get to ....he was supposed to have 33 rads and 6 weeks of chemo carbo and taxol..he had 3 rads and wound up back in the hospital with pneumonia for 9 days...came out of the hospital had 4 rads wound up back in the hospital with c-diff infection ..he was there 13 days...went home and had 4 more rads and went back into the hospital with VRE another infection....he was there another 12 days...it took 3 months to finish 33 rads ...his potassium level stays really low so they keep giving him more thru his port..and fluids too..he stopped chemo with only 3 left to go...His onc said he was just to weak...They did an mri 2 weeks ago and said he has had several mini strokes...he drags his left side...talks funny and does things like talk to his dead brothers and tried to get out of the moving car to get the puppies out of the road...there were no puppies...his onc said there were no mets to the brain....he is not doing well at all....will not eat...doesn't like to take his drugs...the pills hurt...they gave him marinol to stimulate his appetite but so far no luck....all he wants to do is sleep....Does any of this sound familiar? I need to know truly what am I looking at here?? He has gone from 240 down to 170 lbs.....his poor body is worn out....I talked to him on the phone and all of sudden he was trying to change the TV channel ...thought the phone was the remote.....I just hate it for him....any ideas...suggestions....prognosis?? anything at all!!! Thanks so much! Liz