First off, total cute girl you got there.
To your issue, cats often suffer separation anxiety. More so when their is a schedule change. For mine, when I got married and my wife and I moved in together it was pandemonium. It was in and out every fifteen minutes, day and night. This went on...
I had the same thing with a kitten. She had to have worm medicine for several weeks. The biggest problem was keeping her hydrated. Talk to your vet, but even a drop or two of tuna water can keep them drinking enough to stay hydrated. By the time we found her a home, she was a healthy loving...
I feed my old cat Fancy feast, Sheba, and at least once a week I boil a combination of sardines and chicken awful and then process it with her medicine which I split up into portions to get her to take her medicine. Purina's ingredient list really isn't best for my cat according to the feline...