awww hun is she teething???? i remember DD having tanties around the same age, i assume mostly due to frustration, communication is sooooo hard at this age

just reading toddler tactics they have
short attentions span
immature nervous systems (easily over stimulated by noise (tv, lighting))
variety of physical needs- hunger,tiredness,
food sensitivities
insatiable curiosity

clinginess also peaks at this age

hope some of this helps, will be back later, need to feed DD

all of which affect behaviour