Ppd or just regular hormones

How do you know the difference? I have a history of anxiety and depression, they actually kept me on my antianxiety med through all 3 ,pregnancies. With my other 2 i went back on paxill the hour they were born. This time i had been off all meds except the antianxiety for a year before i became pregnant. I really want to stay off because the side effects of the meds were awful and i was way better without it. Im 5 day pp and posting a lot here lol. My anxiety is up but i expected that with the hormones and lack of sleep but im also getting like crying jags and usually around the same time of day maybe twice a day. Today i went to the grocery, my first time out of the house since birth. I had a full blown panic attack ,( grocery stores make me anxious normally ) when i got back i wad bawling because i felt so useless. Picking up and holding baby girl shut that off though. I guess im wondering if others have this and it's normal hormones and lack of sleep or au what point do i worry it maybe ppd and meds end up necessary. How do i know the difference? Anyone else going through this? Please ignore the autocorrects im too tired to proofread lol