Hello sensatives: Well... the Skeezyks is certainly no expert with regard to this sort of thing. But what I can say is that over the course of my long life (I'm an older person now) my "constellation" of symptoms, so to speak, have come-&-gone, wafted-&-waned... sometimes stronger... sometimes weaker... sometimes appearing one way... sometimes another.
During some periods I've felt pretty healthy, all things considered. At other times I've had some real difficulties. A lot of it, I think has had to do with what was going on in other parts of my life. If I was under pressure & stressed out things were much more difficult. Also I would imagine that such things as hormones play a role... especially when one is young.
So anyway, from my perspective, I don't think what you describe is necessarily unusual. I don't know that it is so much a question of some of the symptoms you used to have being "temporary" as it is simply that mental health symptoms can & do change over time. I wish you well...