About a month a go I got a 8 week male dachshund and ever since the first days he seemed overexcited. Jumping up, chasing my cat around, excessive licking when someone pets him and so on.
At the beginning I assumed that it was because he wasn't getting enough exercise. (He didn't have all his shots so I couldn't walk him and we live in a flat) A month later, he got his shots and for the last week I've been walking him twice daily for 30-60 minutes each time and his behaviour hasn't changed.
For example, last night we came back from a 60+ minute walk and as soon as we came back he started running around like crazy and tearing apart one of his toys.
The "problem" seems to be around humans. When we're around or we have guests he goes crazy jumping on everyone. I honestly think I have never seen him lying down in his bed when another person is in the room. When we leave him alone in another part of the flat (because of his overexcitement), he's calm, doesn't make a sound and probably sleeps most of the time which I think only makes things worse as I would think that builds up even more energy.
Is this overexcitement? If so, what can I do to calm him down?