Your edits are still in the LR catalog, but the images are no longer connected to them. If you moved a whole folder of raw images, right-click on that folder (which will have a question mark), choose Find Missing Folder, and navigate to where it now is and select it. If it's just individual images that you moved, click on the exclamation mark in the top right of the thumbnail and choose Locate File, navigate to where it is, and check "Find Nearby Photos". (If you're on Mac, click on Options to access this.) Next time use the Folders panel in Lightroom to move your images. Here are two video tutorials - one on how to use the Folders panel to perform reorganization tasks, and one on missing files and folders.
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