1)
Why does it say "Lachen"?
1.
Malbim: Since you have no salvation from your children.
2)
Why does it say "Aniyah"?
1.
Malbim: She is poor due to the cup of anger.
3)
W"Aniyah u'Shchuras v'Lo mi'Yayin"! (The difficulties of exile distract them. It is as if they are drunk.)
1.
Rashi: She is drunk from something other than wine.
2.
Radak: She is drunk from afflictions, and not from wine.
3.
Malbim: She is intoxicated due to the cup of Tar'elah, i.e. poverty and afflictions.