If I undid too much typing last night is there anyway to get that back today?

My scene is all screwed up. Now I’m thinking I selected “undo typing” to erase a few new sentences I had added last night but accidentally pressed “undo typing” too much and undid things I wanted to keep. But since it was last night, it doesn’t seem that I can reverse it. Is there anyway to get back what I may have undone yesterday? I didn’t do a snapshot.

See my response to your other thread.