postpartum depression?

My daughter is a year now and I feel like I'm getting better but sometimes it still goes through my head when my kids get sick they might die or have cancer or I might have cancer .. my LO rides the bus sometimes I would call the school
Make sure he made it to class and didn't fall asleep in the bus.. my baby would get a fever I thought she would not wake up from her nap! Sometimes I get very anxious where my leg starts to shake.. it's just crazy I don't wanna feel like this anymore 😢