Mary i can empathise with you i really can, i felt a bit the same way when my son and his partner amber came down for xmas, it was so short and then away they went, and it was so quiet again,and of course my 15 yr old is busy doing her thing these days,i think it is that empty nest syndrome, although mine is not quite empty yet, it is starting to feel a bit that way,sending you a GIANT hug, and know you are not alone, cheer up my dear and remember life is good., take care, and i am sure your'e son will be back again soon,filling the house with warmth and laughter.