Baby blues or PPD?

Martha • Married and Mother to a beautiful baby girl ✨

I just had baby #2 on November 2nd and have an 18 month old daughter. I don't even know if what I'm experiencing is baby blues or PPD, but I'm just feeling very down. With baby #1 I had PPD. It was the worst! This time around I don't know if it's the same thing, but I'm just so exhausted emotionally. Why is it so hard to talk to someone and for someone to understand? I just tried talking to my mom how I feel sad and she got mad at me. Please be kind.