Some of the symptoms are similar, sure.
Bipolar disorder is such a different beast. It's FOREVER.
With postpartum depression, you're expected to get better. To once again be whole. There's no set time limit but it does happen. You do get there.
I will be Bipolar for the rest of my life. The cycling, the depression, the highs, the mania, the shopping sprees, the hypersexuality....all of this is a completely different disorder. A different illness.
I'm not saying we can't be friends because we're on opposite ends of the mental illness spectrum. I'm simply pointing out the fact of the matter. There is a difference.
But we can still survive. We can threaten to be "done". We can say shit we shouldn't on the internets. It's not a cry for help. It's not an attention seeking moment, trust me.
It just is what it is in that moment.