So you are her for now.
These are realms of unimaginable suffering and anguish (described in graphic detail in MN 129 and MN 130 ). Should not be confused with the eternal hell found in other religious traditions, since one's time here is — as it is in every realm — temporary
What could have lead you here?
· Ten unwholesome actions (MN 41 )
· Lack of virtue, holding to wrong views (AN 10.177 )
· Murdering your parents, murdering an arahant, injuring the Buddha, or creating a schism in the Sangha (AN 5.129 )
· Being quarrelsome and annoying to others (Snp II.6 )
How to come out?
Actually, in this state, there is now way as simple waiting till another rebirth gives way to do not fall into hell again. So its really not a nice state, with a lot of pain, viewing it as counsciousness, mainly mental in this very existence and can hold on for a long time.