Text Layer converted to Image Layer

Something that has worked for me: Before rasterizing type, always make a duplicate of the layer and then turn off the eye on it.
The handy unrasterized version takes second and is great insurance.

If the file was not closed since the Type Layers were rasterised the History might also provide a solution.

All text layers on my psd have changed to image layers

That does usually not happen without some user input.

Has anybody else had access to the file and may have edited and saved the?

Do you have a backup of the original file? If not it looks like you’ll have to recreate them