Hey I keep breadies too. Some of my older ones will slow down their eating to a level that makes me worry every winter while my younger ones will eat 24/7/365. This can seem like it lasts forever but when the days start getting longer their desire to eat returns. You can try feeding them jukefood like iceberg lettuce. If they eat that put some vitamin powder one one end. When this works I feel better until they return to their normal selves. But as long as they are eating a little I wouldn't panic yet. Not all beardies do this but some just do. Good luck.