Did any Harry Potter fans feel reminded of depression when they encountered the Dementors?

And then the thing beneath the hood, whatever it was, drew a long, slow, rattling breath, as though it were trying to suck something more than air from its surroundings...
"It was horrible," said Neville, in a higher voice than usual. "Did you feel how cold it got when it came in?"
"I felt weird," said Ron, shifting his shoulders uncomfortably. "Like I'd never be cheerful again."

As soon as Ron said that I thought: Wow! That's what it feels like when I'm really depressed! I desperately tell myself this will pass just like all the other times throughout my life...but when I sink I truly feel as though I've entirely lost the capacity for joy.

Does anyone remember what one of the teachers recommended that Harry take for comfort after a Dementor attack?