look for the following signs.
Thanks for the query.
I can understand your concern.
Fall from the height of less than 2 feet generally do not cause any problem.
You just watch wheather there is any vomiting
, abnormal behaviour, unequal pupils.
If above signs are absent there is no need to worry.Lung injury
us less likely and you can see the blood coming out of nose or mouth if the lung is injured.
So as there is no such problem you mentioned i do not think you should be worried.
Hope i helped you.