
Hi Maria,
Your poor girl - they can have a roughtime with phantoms. The best thing to do is take her toy away completely, cut down her food slightly and up her exercise. Try not to be sympathetic, but rather be the 'games-mistress, Jolly-hockey-sticks' type and keep her busy. Don't give her time to brood.
Raspberry leaf tablets, if given early, can often help minimise the symptoms, and won't do any harm.
Good luck!