Why Does My Kitten Lick My Blanket?

my kitten keeps licking my blankets and i dont know why, is it a parasite?

Why does my cat keep biting his paw. He licks at it but he won’t let me pet him. We have been trying to get rid of fleas and we didn’t see any signs of fleas in the house. However I do notice that when you touch him his hind legs twitch as if they hurt or something although we haven’t seen them since we got them back from the vet – but maybe he just has some type of bug bite that isn’t visible? But no matter how many times I ask him to stop doing this he will not! Why would he be biting himself????