Demand the the POTUS receive a CAT scan.

I am not convinced for the letter that was written by the POTUS's General Practitioner. He state unequivocally that he was positive for all tests?!! That makes no sense in the medical field (he is positive for TB, HIV?) so I would like a follow up. I would like President Trump to undergo a CAT scan at Walter Reed to prove that he is indeed as healthy as he is stating. I think that he may need treatment for an as yet undetected aliment that is effecting his cognitive function.