Hmmm
Vikingoddess is correct here disturbance of the Shen i.e. the heart qi is what is usually the root of anxiety, next many would say is Kidney Xu, but not as much.
Liver indirectly can cause emotional imbalance only through Liver qi stagnation, and even that is more to do with mood swings, and irritability of its root emotion namely Anger.
Anxiety is a heart thang.
" Don't confuse yourself with someone who has something to say " - The Fall
" I do not like your tone/ It has ephemeral whingeing aspects " - The Fall
" There are twelve people in the world/ The rest are paste " - Mark E Smith