Is it true McCain is suffering from the early stages of Alzheimer's?

McCain is suffering from Altzheimers and PTSD and the rift has to do with a rumor yesterday that he was "out of it" and in fact, had a psychotic episode. I am a therapist and when I watch McCain speak I ask myself-"Does anyone else see this????" He is like many people I see in various (not all early stages) where they have periods where they do not have comp-they do not know who and where they are. McCain does this all the time, and he gets angry,which is another aspect of the disease. He gets angry when he is questioned and he doesn't have an answer or can't remember. They try to keep him away from the public. he does the same shuffle that bush does with the humor to deflect the need to answer any tough questions and if you will notice, the forum and format is always closely guarded.