Manic episode?

I'm not sure if this is even the right forum to post this in, but that's ok.

The past, idk, 2-3 weeks I've been just generally very depressed. It just kept getting worse and worse to the point where this past Saturday I had slept on and off all day until about 4:30/5:00 in the afternoon. I had never done anything like that before and it was very worrisome, but I didn't know what to do about it.

Later that night I went with some friends to the bar and had lots of fun and talked to one of my best friends that I hadn't seen in a very long time. I ended up staying the night at one of my friend's houses, then another friend that was driving home gave me a lift the next morning. He and I had always gotten along since we met in a Facebook page for incoming freshman at my college about 6-7 years ago, but we had never really hung out just the two of us, so it was nice to get to talk to him a bit. I got home and just felt really good about things; I contributed it to a sort of social high that I just hadn't come down from yet.

I got home around 10:30-11:00 yesterday morning, then I proceeded to spend the next 9-ish hours cleaning my house. I don't remember the last time I cleaned, but I REALLY cleaned yesterday. I started with sweeping all of the rooms in my house, then I mopped, then I still had the energy for everything else that I did the rest of the day. I didn't get to absolutely everything, but I got SO MUCH done. I was waiting all day for my motivation to just crash, but it honestly never did. I did take a break for lunch around 1:00 and watched about 3 episodes of a show, but then I just went right back into cleaning and organizing. By the end of the day I was exhausted and rewarded myself with one of my favorite movies. However, even with as exhausted as I was, I actually had to force myself to stop cleaning/organizing and to go sit down. I think I spent at least about an hour or so still cleaning after I said I was going to be done the first time.

While I'm immensely happy that I got so much done and I can walk through my house without feeling guilt and little pieces of dirt on my feet and lots of other things, I'm a little wary about what exactly it was that prompted all of that. I've been diagnosed with depression and anxiety and possibly ADHD, but I'm wondering if that was a sort of manic episode that I had (or still am in)? Not that I feel bad or anything (although I'm actually very tired today), but I've kind of just been waiting for The Crash and I want to avoid it as much as possible.

Is mania a sort of symptom of any of these (depression, anxiety, ADHD) that anybody has experienced? Is it really a negative thing necessarily? If it's a good thing, how can I keep from crashing? If it's a bad thing, what can I do about it?

Thanks for reading, I really appreciate it from the bottom of my heart.