Animals also experience emotional states,

for example, fear, nervousness,
clinging, ‘bossiness’…and many other
states Abuse, neglect, or abandonment
Pre- and post-surgical treatment
Grief (loss of a human or companion animal)
Fear (of loud noises, visiting the vet, people, etc.)
Hyperactivity
Aggressiveness
Jealousy
Possessiveness
Inappropriate use of litter box (or nonuse)
Changes in household
Excessive Grooming
These are all conditions that may be treated with Bach Flower Remedies and flower essences

And often suffer in the event of separation, bereavement, surgery, trauma etc