My rescued Dachshund Wally who I've had for almost a year went for a well checkup along with my other dog, Ziggy, a Boston mix. 450 dollars poorer I left and all appeared well . But today Wally isn't his rambunctious self. He has eaten his meal as he did last night but isn't up to running after squirrels. They took both dogs away in the back to get blood to check for Lyme and heartworm(both negative on both dogs). Wally screamed when his was done, Ziggy was quiet. Wally had DA2PPV 2 year booster, Heart worm/ Lyme test, three year rabies vaccine, . Plus vet found he had a slight ear infection and now I wash his ears out, wait 30 minutes and give Mometamax drops. Would this be a concern? Should I call the vet? Ziggy is fine and normal today.