A DNA test revealed I have a half-sibling through my dad — should I confront him? What if he doesn’t even know they exist?

Gail Rudnick and Kim Murstein — the no-nonsense hosts of hit podcast series “Excuse My Grandma” — are The Post’s brand-new advice columnists,

From family feuds to friendship fallouts, money, marriage and sex, there’s no topic too taboo to tackle, and the native New Yorkers will hash out each issue from their differing perspectives to tell the tough-love truth — and you’ll thank them for it.

To get your questions answered, head to nypost.com/ema and drop them a note about what you need sorted.

Dear Excuse My Advice,

I did 23andMe and discovered I have a half-sibling I never knew about through my dad. Do I confront him — and what if he doesn’t even know they exist?