(((((tree)))))
it's okay to feel however it you feel, and it's okay to not know why.
I'm sorry you're isolated right now from your IRL support system, but you do have a lot of support here, so you're not really alone.
I hope you start to feel better soon. I am depressed too and I also don't know why, and it's bugging me not knowing, but I'm trying to just let it be.
Keep swimming, tree.