Syndrome doubts

by Lala

My 4 yr old takes everything in to her mouth. She also can't seem to resist to touch things. She can get hurt and don't complain about it, unless she sees blood. She tend to be very calm and quiet, but lately she throws tantrums for los anything. Sometimes is likesheshe can't hear me. She spend a lot of time just lying on the floor or our big pillow reading, most of the time alone. (She is the second of 4 sisters) Also sometimes she makes friction with the falls. . Could have this syndrome?