Sorry you were feeling so down yesterday...I can relate to that. It's like this emptiness that won't go away, right? Like a void that even makes you nauseous? I felt that way for a long time. Maybe bc of how hectic my life has been, or bc my H has behaved in such an awful way, I haven't felt like that in a while.
Try to exercise every day, or at least go for walks to clear your head. Spend time in nature. It's really hard, but you can do it. I know it.