An actual grand mal seizure in a dog is impossible to miss. They will collapse and start tremoring, their legs to stiff, mentation is lost, and they often lose their bowels. Afterward there is a post-ictal phase--dogs have altered mentation and can be weak or uncoordinated. This resolves with time. Partial or focal seizures can occur but do not usually focus on one area of the body in dogs. After partial seizures dogs can experience mental confusion and stumbling but again this should resolve quickly over the next several hours.
If your dog is weak and has trouble walking continually I would be more concerned about arthritis, trauma, and neurological problems.
Regardless of the cause your dog needs to be examined by a veterinarian. Seizures can be caused by several disease processes and metabolic disturbances. Treatment will depend upon the cause of the seizures.
The other disease processes mentioned also have treatment options to ease your dog's pain. Your veterinarian may want to run screening blood work or take x-rays as appropriate.
If your dog is weak and has trouble walking continually I would be more concerned about arthritis, trauma, and neurological problems.
Regardless of the cause your dog needs to be examined by a veterinarian. Seizures can be caused by several disease processes and metabolic disturbances. Treatment will depend upon the cause of the seizures.
The other disease processes mentioned also have treatment options to ease your dog's pain. Your veterinarian may want to run screening blood work or take x-rays as appropriate.