what is going on?

So Originally i was diagnosed with Postpartum anxiety, I wanted to exercise and find natural ways to treat it. I have a prescription for zoloft 25mg and 50 (if needed) i filled the 25mg but did not take any.

I am now 5 months pp and I feel like my anxiety (possibly depression) gets worse when all three kids are together. So when I only have my 5 month old i'm fine. If i have two kids i'm still fine but get agitated easily. Now when i have all three kids together, all hell breaks loose, my head feels compressed and squished, I get so agitated when one of them talks, or asks a question,I don't want to do anything at all. I just want to scream!!!!

I don't know if this is anxiety that resorts back to the way my mother had three kids and I swore i would never raise my kids the same, I hate my older sister and was never fought for as a kid, I felt like i was never good enough.

Does this sound like depression or anxiety, i Have no idea on what to do