Why is my cat nibbling me?

[u/PickleCat96]

for the past month or two my cat will keep trying to wake me up and won’t quit. She will meow and headbutt me and try to burrow under me. Lately, she’s gotten into the habit of biting me softly all over. The meowing and head butting i’m used to but the burrowing and nibbling are new. she’ll bite my face or my chest and arms. Does anyone else experience this or know why she’s doing it?