My (spayed, female) cat keeps getting into fights with other cats. These are during the day as we keep her in at night. Today my husband heard the cats going at it and then she ran in covered in mud and water like she'd been in a puddle, and with scratches on her face again. We think she's fighting our neighbours' cats but haven't seen them, only heard them. I've checked her all over and she seems fine apart from the scratches. I've dried her fur and brushed her but she's not cleaning herself like she normally would and seems down. Can cats be traumatised by fights?