Our American Eskimo mix has always been a bit anxious. She hates fast moving little boys (probably from her early life) thunder, gun shots... etc. But as she has gotten older (she's nearly 9 now - we'...
We had a puppy mill rescue that was like that. It got worse the older she got. She was not socialized because of cage living until she was 9. Then she did ok except around small loud fast moving children. Then she started getting worse again to the point of starting to snarl at us. She had cushings disease which is made worse by the extra cortisol produced from stress. An adrenal gland problem can cause this too. Please have the vet check for something like this. It can be treated.