Is it normal to suck your index finger?

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  • I am very like you I suck my right index finger and fiddle with my hair (probably because it's soft) I only like do it when I am tired... Sometime in class I struggle to stop my self from doing it. I only do it when I'm tired on when I want to go to sleep. Like to get my self to sleep but once I'm asleep I 'apparently' don't do it

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