While anxiety can lead to a range of behaviours, they should resolve once the event has stopped and the dog has calmed down. At this point, we know there is more going on.
She may have injured herself while anxious.
I'm sorry she has been acting like this and know you will be worried for her.
Her signs are not specific so there could be a few things going on here including:
- Back pain due to e.g. IVDD or a strained muscle
- Pancreatitis (which causes bad abdominal pain)
- Bladder stones or cystitis
- An infection of the central nervous system e.g. meningitis
Given how she is acting, I'd want her seen by a vet ASAP.
They will examine her and may run some tests such as a blood test and imaging, to get to the bottom of this.
Her signs will depend on what is going on and may include e.g. pain relief and anti inflammatories.
At home, encourage rest and keep a close eye for any new signs.
Ensure she can pass urine and poo as normal.