So it was totally fine one minute then without any setting changes every export was blurry. I wasnt resizing the images. they are raw files. When exporting I was converting to JPG.. And it is the most updated version of Lightroom.
Check your export quality setting. Are you applying ouput sharpening?
Screen - for web or email usage or for print.
As Jon suggested, check every export setting. Don't overlook any of them. Very often in LR, I'll scroll the mouse and it will wreak havoc on a slider. Perhaps that happened here.