Hi, my 4yr old daughter has learning difficulties, sensory issues, globally delayed with poss autism. I noticed today she has started to suck her hands and arms, she has little patches on both hands where she's sucked so much little blood spots has appeared and also a couple on her arms. She's never done this b4, I'm wondering if it's cause she's bored. She goes to a special school that's amazing and she always doing new things and she loves going there, but it's half term with bad weather so she's been stuck indoors. Anyone else experience their children doing this?