[stonehouse01]

“...explained by alcoholism...”

I think this as well, including the falling down.

Hillary’s cycle of “disappearing” for days then reappearing and seeming fine is also explained by the drunk-recover-from hangover-re emerge-cycle.

This could be in addition to her medical issues. The falling down and periods of disappearance could easily be both.

[tomkat]

I have it on excellent authority that with age and steady or increased consumption, devastating hangovers can last from two to four days, during which most normal functioning is nigh impossible.

Of course there are always exceptions, but I'm betting that she ain't one of 'em.