Hi Melissa,
I don't hear any voices but I have had many episodes that are called either
1) rapid cycling, where you go down real quick and up real quick, even as quick as in 5 minutes. Mine was triggered by an antidepressant they gave me. It was AWFUL. I still rapid cycle, but about a week or two of each, which is sitll fast, but I try to live with it with medications. That is they way my bipolar disorder is mostly.
2) mixed states, where you can fell both at the same time! that is awful too. I feel like I'm on a merrygoround and I want off!

Are you on medications? Do you see a therapist? I recommend this highly if you don't yet. I wish you well my friend. Take care.