My Daschund

My Daschund is 6 yrs old. He has always been a happy, active,
barker. 4 days ago he stopped barking, walks very slowly, and
shakes like he's cold. He is eating, drinking water. He seems to be depressed or sick, he's very quite. Any idea about what could be the problem?

It does sound like he is sick. it could be so many things though.

Could be a cold, a virus, fever or worse.

4 days is a long time for him not to be feeling beter.

he should be seen by a vet who may do tests to figure out what`s wrong.

Clarence