iCloud-Pages reverted to before an entire day of work.

I'm forced to constantly switch between the Pages online which does not support Equations and the Pages on iPad which does support equations but functions so poorly I'm worried I'd throw my iPad against the wall if I spent too much time trying to use it. So I know for a fact that all of my work was saved because it had to save to reload the updates between the devices. Today when I opened the document on the computer it just doesn't have any of the work I put into it yesterday, and that same version was on the iPad when I checked. How do I get back what disappeared? I don't have enough time to redo everything; unless I don't want to sleep tonight.