Help with finding the drawing in the field after re-opening it this am

I worked on a drawing yesterday for a couple of hours (newbie) and I saved it. I opened it this morning, and I cannot locate the drawing in the field. I have kept it at 10/100, and scrolled over and up and down. Can anyone give me a suggestion for finding this drawing OR - where do I start a drawing IF I have to start over. Thank you!

View - Auto Zoom should display all the contents.
If you accidentally have got an object very far off the elements may be displayed very small, nearly invisible. Select - Select All makes them easier to find.
Check for layers accidentally switched off (eye symbol in the Layer List).
Or the drawing has not been saved properly or to different place.

You have sent me an email that contained nothing than quoting my previous posting. What was your intention?