Depression Treatment Care

im 39 weeks pregnant and im starting to feel very depressed i can hardly sleep at night and think crazy thoughts i even feel guilty for feeling selfish and thinking less about my baby can this be the beginning of postpartum depression?

what can you do also if you keep havin flash backs of past traumas, like when i was in supportive housin years ago with care workers, who when i was out would steal all my clothes, i couldnt prove who it was or who was doing it, this was in 2001. now i get angry at being taken advantage of and think, the injustice of it. what do flash backs mean? plus my thoughts are racing bad at the moment.