going to the doctors would be a good idea children hurting themselves is a sign of distress,as I have been told by a doctor sorry to be so blunt.

Is he teething? Also my babies have all had some sort of comforter when put in their cots (Pacifier, Blanket, Teddy) that they would squeeze and chew or suck on when going to sleep. I have seen alot of babies suck their thumbs and give theirself "lovebites" when trying to go to sleep. Maybe your son is using his self as a pacifier, try putting a soft little blanket in his hands when he goes to bed

My cousin used to bite herself when she had done something clumsy or was unable to articulate her feelings verbally. (This was when she was 3). Because she was very verbal my aunt was able to encourage her to talk her feelings out rather than take it out on herself. Damian may not be old enough to say things that are upsetting him coherently when he is frustrated with himself so maybe you could talk about a sound he could make to express himself when he was feeling strongly about something, or get a squeezy pillow or toy that he can squeeze really hard when those feelings come on.

I seem to recall you are expecting? He probably has some anxiety about that too.

Definately talk to your doctor if you are concerned still though. Poor little mite- they have such complex feelings but not as many ways as we have to express them.

Hugs,

K