Can comorbid depression and anxiety resemble BPD?

Last time I was at the hospital, my psych test said I have traits of Schizoid PD, but I believe that's because I was in a depressive episode and I didn't have the motivation to talk to anyone. The test results didn't indicate BPD, but when my depression and anxiety get bad I have a lot of symptoms similar to BPD. I've only been diagnosed with MDD, Dysthymia, and an anxiety disorder NOS. But is it normal for people with depression and anxiety to show symptoms similar to BPD?