Cassie is 21 months old she has always been a timid dog but recently any loud noise or anything new to her sends her into a tizzy. She hides and trembles badly and will only settle to sleep if i am with her. I think it started with fireworks at halloween and progressed severely from there. Is there anything i can do to help. I dont think its separation anxiety as she doesnt destroy and soil the house when we are absent which is rare anyway. Need help as its not nice to witness.