Do surrounding circumstances triger your mood?

I have found that mostly my mood comes within and there is nothing I can do to change it. It is hard to do things in my "low" episodes as everything becomes so meaningless, but I still manage. However, I have noticed that things that mean a lot to me and go bad shove me lower when I'm already low, but don't impact me so much when I'm well. By that I don't mean in a depressed, devaluating myself kind of way, but making me stuck in an anhedonic, empty state for a longer time. To me that emptiness is even worse than feeling something bad, as then at least you feel something, you're not numb. What experiences do you have with that? What makes you bring up to your "normal" self?

I've found that my mind latches on to things that happen and tells me,"This is why you feel bad!" but I wouldn't have reacted that way to the circumstance if I wasn't already sick. I like to think of it as my mind makes excuses for being sick.