Your discription of the situation simply does not match the circumstances present when the photo was taken. She was standing on a wide, stable, and level surface, not some rickety soapbox. She had already begun her talk, and was not being helped up or down. She simply lost her balance for whatever reason while delivering her talk.
Again, still photo, show the video.. if you don’t have some video showing her about to fall for no reason whatsoever, you really don’t have anything but what the gateway pundit wants to claim.
If she did this in public, video of this event exists somewhere on someones cell phone, you have that, then you can present it as some argument that she had a health issue, but a still photo like that proves nothing.
Again, I do personally believe she has issues, but that image doesn’t show anything that allows anyone looking at it to conclude she had some sort of episode.
Sorry, but if that’s where you want to go, you are free to do so, but that photo doesn’t give you anything that’s going to convince anyone that isn’t already predisposed to the conclusion she has issues.