I just had a happy/positive day but how?

I can't pinpoint what it is but today I felt positive, motivated, I was engaging with people, joking around, singing, humming etc, my old self basically. I had a clear mind. Btw, when I woke up I felt the same shitty way and didn't want to get out of bed. It was a very noticeable difference to my usual day which is having no interest in anything, disconnected from people, not listening, feeling down and low, demotivated. But I dunno wtf is so diffeent about today. I've dissected the day and I havent done much different that would be considered significant. Im sure its not it but i had 2 turmeric tablets, multivitamin that was different but ive been routine on this before and still feeling low. I went out with siblings niece and nephew for an activity but the rest was usual. I wish I knew what it was. Does anyone else get this?