Yes: you are normal. Every woman’s experience is unique but you are normal in the sense that your experience is completely understandable and there is nothing bad, wrong or abnormal about you. Even if you met criteria for PND, this is still normal in the sense that 1 in 7 woman will experience it and 1 in 4 experience significant postnatal mental health difficulties. So these are all very normal, they don’t make you weak or bad or wrong in anyway and they don’t make you any less of a mother (although it almost always feels that way).
But, yes: it also sounds like you intuitively sense that you’re experiencing distress and you deserve to get good quality support for this. I hope you do reach out because you deserve to get the support you need to feel confident and settled in yourself. You’ve taken an enormous step by posting here- I’m sure you thought about it for a while and felt nervous about posting and it’s no insignificant thing.
Maybe if there are barriers to you seeking support from a professional you could write them down on paper and think about them, or write them out here? If it feels too daunting, what would be the next step that feels manageable- is there a friend you could talk to? Could you rehearse what you would say out loud in the bathroom or write it down? Could you book a GP appointment for two weeks’ time? You can also self-refer to your local IAPT (google it and they’ll have a phone number or an email address) where they can offer you a nonjudgmental space to talk, maybe you’d find that easier than your GP? What would be the tiniest baby step in the direction of getting support for yourself with these painful and difficult feelings?
Just to say though: you won’t feel like this forever, it will get better, it doesn’t make you any less of a great mother- but you might need a bit of extra support (as we all do at different times) to get to a place where you are feeling better. Don’t deprive yourself of that support because you feel you don’t deserve it. You do.
By the way, you shouldn’t not feel this way just because you have a supportive partner- pregnancy, childbirth and adjusting to motherhood involves a huge, monumental psychological and biological upheaval- there are so many enormous challenges to face. Don’t discredit your emotions just because you don’t think you have a reason for them. There’s always a reason.
Best of luck and please be kind to yourself. Postnatal healing is a huge journey and you’ve gone through so much already. I really hope it all gets better for you from here on out. 