I have a 5 year old daughter who continuously puts things in her mouth: toys (barbies hands, dinosaurs tails, playmobile heads, etc.), books, paintbrush ends, chewing on straws, things she picks up of the floor (that's been getting better over the last year), the list is pretty long. Every time I tell her to take the item out of her mouth, she almost seems embarrassed and also sneakily sticks it back in her mouth as soon as I turn my back (all stealth like). I'm concerned for her health, of course, but also worried if this is a precursor to more dangerous behavior the older she gets.
I guess my questions are: is this common? Is it dangerous (outside of the normal led paint, plastic chips, and so on)? Is this an "illness"? Is it something that I can help her stop w/out being rude about it? Any other thoughts or advice on this would be greatly appreciated.
Thanks a lot!