Fast Healer and Fast Healing (from Storm in the Blood)

[Dr. Cliché]

I've got a couple of questions about the Fast Healer feat:

1) Does it improve the healing from Fast Healing abilities? e.g. the Slyph's Storm in the Blood variant feature or the Infernal Healing spell.

2) In the case of the Slyph's healing (assuming it works at all), would this extra healing still count towards the ability's limit?

For reference:
https://www.d20pfsrd.com/feats/general-feats/fast-healer
https://www.d20pfsrd.com/races/other-races/featured-races/arg-sylph

[RNightstalker]

1-I don't think it improves any fast healing, just gives you another source of if.

2-Since it's a separate source, I don't believe one would have any effect on the other.

[StSword]

The feat increases hit point gains from rest or magical healing.

Since storm in the blood is not listed as spell like or supernatural, one would have to assume that it's a extraordinary ability that isn't subject to antimagic fields and the like.

Which means it's not magical healing either.

So no, it wouldn't improve on that fast healing.

A ring of regeneration though,seems like it would be a valid combination.

[The Random NPC]

Fast healing is just like natural healing, which is the type of healing you get from resting. Fast healer doesn't increase the per day limit from storm in the blood.