It's most likely due to dehydration. It happens more frequently this time of year, because the heaters in our houses suck all the moisture from the air. If you maintain the humidity at 50-60%, you should notice that they resolve themselves fairly quickly. You could also add a humid hide to the cage, if necessary.
Cause when push comes to shove you taste what you're made of
You might bend, till you break cause its all you can take
On your knees you look up decide you've had enough
You get mad you get strong wipe your hands shake it off
Then you Stand
its a glass cage with a mesh lid there is a hide box on each side 2 plabts and a stick and his water dish. how can i get the humidity up i cant get it past 45
Do you heat with overhead lights? Your mesh lid is allowing humidity to leave the enclosure too rapidly. Try covering part of it with contact paper or saran wrap. Make sure to leave sufficient room for fresh air to enter the enclosure though. If you are using lights they are terrible for sucking humidity right out of an enclosure so that won't be helping either. Also are you sure this isn't retained eyecaps from a previous shed as well as any issue with dehydration?