My emotions are all over the place (assistance pls)

I really don’t know what my deal is but I feel so unstable. Like I’ve been exhausted all day and I keep switching from incredibly annoyed to default to so happy I could cry to shitty to angry to frustrated. And it’s all like in extremes. I keep like randomly crying and it’s not even for that long. I feel awful and I don’t really know what to do

Any help would be appreciated, thanks