Dad has had bladder cancer and his treatement ended 6 months ago and he was clear. he is 82. Recently the hospital found a tunour in his chest whilst doing pre ops for a hip operation. They don;t know yet if it is a primary lung cancer or a secondadry bladder cancer. During the appointment yesterday Dad was confused when the Dr was talking to him and he felt Dad might also have demetia and suggested we took him to a G.P to get him assessed. I feel that Dad is overwhelmed by whats been going on from being relatively helathy with a painful hip to baldder and now lung cancer in the space of a few months. He is also quite deaf and finds it hard to talk to the Dr because he is too terrified to ask questions -becasue the answers can be scary. So I am not sure if he had dementia or is overwhelmed. My mum has dementia and is on medication for it. Thsionly works in the early stages and there is no cure. i am reluctant to have Dad tested as he is goign through a lot at the moment and I don;t want to worry him more that we need to. At the same time I don't want to stop him taking dementia medecine which may help him in the early stages. Any advice?