Terrier breeds can be prone to seizure disorders and it could be the case for Lady. If she has had several seizures already I would advise a trip to the vet because she will need to be examined and potetnially start medicaton. I think this is more likely to be a hereditary problem rather than any potential abuse
What you are descrbring sounds like moderate seizures (see below) and will most likely be a type of epilepsy.
Types of Seizures:
Mild: (Petit Mal) this can be a simple as momentarily staring into space, or upward eye movement.
Moderate: (Grand Mal) the dog falls down, loses consciousness and extends its limbs rigidly. Paddling of limbs, salivation followed by possible loss of control of bladder and bowels and vocalization (blood curdling scream) may follow. This may occur for 1-3 minutes and is most often followed by a period of restlessness, pacing, bumping into objects and loss of balance. (Post Ictal period) The dog is conscious but may appear deaf, blind and disoriented. Great care must be taken to prevent the dog from injuring itself at this time. The use of Bachs Flower Essence Rescue Remedy (found in any Health Food Store) has been found to be extremely useful when given at this time. Simply put a 4 drops of the Essence into the dog's mouth after the seizure has finished. In most dogs the post ictal time will be cut considerably.
Status Epilepticus: Status can occur as one continuous seizure lasting 10 minutes or more, or a series of multiple seizures in a short time with no period of normal consciousness, this may be life threatening.
Cluster Seizures: Multiple seizures within a 24-hour period time, may also be life threatening. It is often difficult to distinguish between the two types and veterinarian assistance is imperative. Rectal Valium is extremely useful in breaking cluster seizures.
Please have her checked by a vet as soon as possible
