If she's new to your home she may be a bit disoriented. She may be helped by having her own little "safe spot" like a box on it's side in a quiet corner with a warm snuggy blanket and soft toy to snuggle with. Being next to your warm chest and heart beat is best if she's a young kitten/cat. Welcome to PetTalk and ask all you want. We will try to help. Mruffruff has an excellent point about her being in heat, depending on her age.