My boy is coming upto 10 months old. I dont know what is up with him at the moment, but last few weeks he has been going crazy at shadows. If we are out walking and shadows are cast from me, or moving vehicles he jumps around and tries to jump on them. Also around the house, he casts shadows on the wall as he walks up and down ghe stairs, he stadts jumping up at the walls on the stairs. Im scared he will fall and hurt himself. If this craziness normal. Shadows never used to bother him. I dont know if they bother him now or hes just trying to play with them. Its all v strange. Anyone else have similar issues?