We’ve heard of some weird huge negative (unlike your huge positive) size totals for unknown reasons.
File size remaining goes negative has some discussions and might also give ideas on how to monitor.
If you actually have a file that reads back huge, you might be able to see its name in file progress area.
Post them if you like. Errors are more serious than warnings. Was the repair recreating the database?
I would have thought that enough of an error would block database use until whatever it was was fixed.