I've adopted a stray kitten since 1 week old, because i notice the cat mother abandoned them both. Well, 1 couldnt survived (due to lack of antibody) - died. and now the remaining kitten is doing good, 2.5 mths old already. She is overly hyper active. i have 2 other adult cats, but they aren't this hyper when they were kitten.

How do i calm her down? Because when i carry her, her heat beat is so fast that i worry she will get heart attack...