Does Prince Salman have Alzheimer?

Mujtahid, whose tweets have been interesting but not always accurate, insists that he has Alzheimer.  People who have met him during his Asia tour say that he does not have Alzheimer.  He sometimes appear alert and engaged but other times is not.  And then there is that famous last trip he took to Libya when he told the officials he met (in the presence of the press): "And send my greetings to the Col"--in reference to Qadhdhafi.  Official Saudi media were aware of the buzz that the sentence created and the intensification of the rumors about his Alzheimer when that sentence was uttered. Some in the official Saudi media claimed that Salman was being witty--and wit to House of Saud is what Zionism was to George Habash, and that he was making a commentary about the state of affairs in Libya.  There is no reference to Salman's Alzheimer in Wikileaks.