PPD vs. Baby Blues?

My LO is 2 1/2 weeks old and most days, often multiple times a day, I feel so overwhelmed, cry uncontrollably, feel as if I’m not a good mother or can’t take care of my daughter, and just feel sad. I feel like I’m comparing myself to an unrealistic perception of other new moms that are handling things way better than I am. I’m normally a very “together” person and have never felt like this before. Also no matter how exhausted I am from having a newborn, I can’t seem to sleep when I have opportunities because I’m just worried about everything and my mind is racing. I don’t feel this way 100% of the time but I don’t feel like myself at all. I am unsure if this is normal “baby blues” or at what point it could be signs of post partum depression. I feel a lot of shame as well. I work in healthcare and ironically there is a lot of stigma with mental health issues in healthcare and if this is PPD and doesn’t go away I will have a really hard time coming to terms with that. But I’m not sure at what point I should think this is more than just baby blues :/. Any advice is appreciated.