It's feeling pretty gloomy right now

I might not be able to explain why for a bit, but right now I'm dealing with this constant mental pain. It's like my appetite, thirst, and especially sleep are MIA. Everything just feels shattered overnight, you know? Can't close my eyes without feeling anxious. And when I do fall asleep, it's only in tiny fragments-half an hour or maybe an hour at best-and then back to anxiety land. Getting through the day is really tough right now; every minute feels like a punch in the gut