Okay so I fed my goats this morning and they where fine acting normal eating/drinking and when i got home they where making more noise than normal so i checked on them again and there was fluffy fur everywhere and they where rubbing against the cage vigourously.upon closer inspection there was some spots of fur completely rubbed clean or close to it on one in the face and on the other on the side.No change in diet I have had them for 2 years and they have been happy and 100% healthy the whole time both are nigerian dwarves wethers i beleive around 4 years old,what is concerning is that this happend over a 6 hour period what could be the cause?mites or some other parasite?if so what course of action do I take in treating it?thanks in advance for any info