Has anyone felt fine up until the 3-4 month mark and started feeling either PPD or PPA?

I seem to be getting anxiety almost every night so bad I feel nauseous or it’s hard to breath. And then here and there throughout the day.

Before bed I look to see if my baby is breathing and then thoughts go in my head of what if’s. What if he’s not breathing after I fall asleep what if he rolls over and his face is planted in the mattress to where he can’t breathe?

Or if I shower and he’s with my husband I have thoughts like what if my husband rushes in here saying we have to go to the hospital now such and such happened. Or if I walk to the kitchen while he’s in his bouncer (kitchen and living room are joined so I have eyes on him at all times) I think what if the dog suddenly decides he hates the baby and attacks him. Even though the dog ignores him 100% of the time. I’ve even thought when my mom visits what if she decides to take him while I’m in the bathroom..like take him take him.

I don’t want to be put on medication because I’m breastfeeding and I feel like I could get help through a counselor if I could afford it. Having someone to talk to would help especially in a professional setting.