That is the worst, I'm so sorry of what you're going through.
We lost 3 in a year, and I got so numb to it after the 3rd. It almost makes you scared to bring in a new pup knowing your heart will get ripped out once again. It's never easy, and I will always do it again.
So sorry to hear this, lost my little cockapoo buddy Rudy about 14 months ago, still lookin to see him comin around the corner these guys have a special place in our hearts