Dead by Daylight Wiki

A few questions

It seems I'm way too stupid to get how this perk works; more precisely, how Deep Wound works.

"The Survivor has 10/15/20 seconds to mend themselves."
Am I correct in assuming that these time periods only start as long as the Survivors are not being chased?
Is this also the cause that the timer doesn't count down right after being hit during a chase?

"If the unhooked Survivor takes any damage while affected by Deep Wound [...], the unhooked Survivor is immediately put into the Dying State."
When the effect is applied through The Legion's Feral Frenzy, after being affected, Survivors can sustain multiple more hits before being downed. Why is that? — 18:54, 15 December 2018 (UTC)