Lore wise should vampires fear Restoration spells?
And what about Destruction fire spells as they are weak against fire?

Lore wise.

Explain Heal Undead, please.

I can't explain.
But what about Destruction fire spells? Any known vampire using fire spells?

I role play it that healing spells, like sunlight, burn a little...He winces and cusses under his breath whenever he steps outside a shop, wilst drawing up a hood...And places of holy ground severely drain him of his vampiric powers, but as a devotee to Akatosh...as the damn Dragonborn...and under the belief that Akatosh allows him to rewind time and reverse his errors...ahem...He endures these as trials of faith and perseverence.

Hm, perhaps it's just easier to role play that I wear special gloves that let me handle fire spells?