Those aren't termite eggs, but termite frass, or
poop. I hate to be the bearer of bad news, but there are termites in your home. Starting at that baseboard, go up directly above those little piles of termite frass, and there will be a little pinhole where that sawdust looking poop is coming from. It's possible the colony lives outside in the soil just near your house, and they don't like to be exposed, so if they don't have direct subterranean access through your foundation, they can make what looks like little mud tunnels and they're visible. They'll be on the side of the house near by the ground, and that's one way they get into a home to harvest the
wood to take back to the colony, similar to an ant trail. Sorry man, I know this isn't what you want to hear.