Puppy blues? What do I do?

Hi there im not sure if this is what to call it but man I feel like (not to discredit post partum) but genuinely I am experiencing symptoms similar to it I had a family member ask me if I was keeping something from them because of these symptoms and I love my puppy but I feel so dissociated and I truly havent felt like myself since I got him, I dont know if its because im in shock or something because I didnt think truly this would happen, that I would actually get him and hes here? Is this a thing? What exactly is puppy blues

I cried when we got him, but less than I thought I would I feel like I maybe am dissociating and then since then I have been overly emotional those symptoms, especially crying and then going I dont know why im crying, my partner has said it feels like a lot of my regular mental health things I deal with have kinda gotten worse, like im more sensitive and "hormonal" almost (since the random crying) and honestly as far as puppies go hes been amazing, ive had my hardships dont get me wrong, he is a puppy, but oh my gosh he is not that bad so I dont know what is causing me to feel this way

is this going to go away?

It makes me feel really bad because its affecting my partner and I dont want it to affect my pup or his relationship with me.

PS pup is well taken care for I robotically still go through the motions, my partner says that he thinks the puppy is doing incredible with me – but I still would like to not feel like a robot 🙂