feeling like you’re faking it

This is so weird, does anyone else just have like a few days where they feel normal, maybe not happy but just normal like there’s nothing wrong, and it makes them think that they were faking being depressed that whole time cuz they suddenly forgot how it felt even though i know that 2 days ago i was on the verge of killing myself, but suddenly i feel fine. This happens from time to time and then I go back to feeling bad again and it somehow relieves me cuz atleast I know I wasn’t faking it? It’s confusing, why does this happen? I have an appointment with a psychologist soon, how am i supposed to just explain that yeah I felt like dying for 2 months and suddenly I woke up and felt fine about life. Am i really depressed?