PP Hair Loss

Many girlfriends gave me the heads up about PP alopecia. So when my daughter was born a year ago, I didn't think twice when my shower and house became littered with long black strands EVERYWHERE. Now, since it's been a year, I'm concerned that it's still happening. Any other mommas still experiencing this so long after giving birth? The picture shows what collects at the drain after 2 showers. Also, I'm still taking vitamins and got 3 inches chopped off-- nothing helps.