My cat is 10-1/2 yrs old. She is strictly an inside cat and the only cat in the household. I have gone out of town on several occasions for several days but my husband was home. A week ago we decided to go away for a couple of days. She was left home alone with plenty of food and water. When we came home she seemed to be fine. Meowed a lot and wouldn't leave my side for the rest of the day. Now we would like to go on a longer trip. Would be 4-5 days. I'm concerned about leaving her that long without humans around. Will she be okay that long alone? Any suggestions?