Cat shedding tufts of hair

[ThePungentOnion]

My cat is shedding little tufts of hair and has been for about a week. She doesn't look patchy or ill and is her normal demanding self. Should I be worried?

Excuse the manky carpet, previous tennant left it in a state...

How old is your cat? is she eating and drinking normally? Is she more or less active than normal?

is she your only cat? I find bits like that when mine have had a tussle...

has anything changed recently to cause her stress?

She's about 4. A rescue cat. Eating and drinking normally, not displaying any odd behaviour or appearing stressed. Only cat. No major changes recently.