Wait a second here. Erdogan flew home on the 28th (reported on this thread: http://www.freerepublic.com/focus/f-news/2373205/posts ) after a 2-day visit without meeting with Khamenei. So after being in a coma or in poor health on the 26th and 27th, boom, he wakes up on the 28th and feels well enough to talk to students? Sure.
It could very well be a planted story by the regime