No need to apologize at all, those are both valid questions.

With the second question, for me, it's kind of hard to separate the two... But I think generally what I would consider more normal PMS symptoms for me tend to be a little bit of weepy type sadness/emotional-ness, and the times when I can tell it's actually bad depression/anxiety flaring up things are more intense or severe, like actual anxiety attacks and self-hating thoughts. It's also possible that the 2 kind of mix together with PMS just making your typical depression and symptoms worse, which I think is what happens for me sometimes.