I was feeling like shit last month. I decided a few months ago to stop taking my anti-depressants thinking it would be best to change my thinking patterns, and while it did work for a bit, last month I felt like crap seemingly out of nowhere initially, but then that spiraled into feeling unappreciated by people.
Not gonna delve into them, but you think some really dark thoughts when you feel alone and as though you mean nothing to people. I sent an old friend from my hometown a message in the latter half of the month before, and didn't get a response, so I simply sent a message asking if we were still friends, thinking it wouldn't be worth bothering. I hadn't talked to this guy in ages, why would he say yes after all this radio silence I've been giving?
But no, this guy responded immediately, hyped up to hear from me again, saying of course we were still friends. It's been slow working things up again, but that just comes with schedule conflicts and not living in the same city, but that was an instant mood changer after nearly two weeks of it being in freefall.
Helped me start putting more focus on giving myself accurate self-assessment. Been writing down times I felt appreciated by others for reference for when I feel like that again so I can nip those thoughts in the bud next time.