Hi Superman
How much is a lot? What was your cycle like? (how long on how long off) From what I have read on creatine the worry was always about kidneys, not liver damage. There are new studies showing creatine to be very safe and almost a miracle supplement. They want to use it for seniors. I will see if I can find the study and post it.I also know someone who has taken creatine for six years straight in moderation and has had no problem.
To answer your question; yes, the liver can rebuild itself. You talked about the dust and carpets,maybe you picked up a mold. They can wreck havoc on your health.
A liver cleanse is a good place to start.Also check out the parasite forum.It might take time but if you search this site you will figure out what's wrong and how to cure yourself.
Good luck HULK
P.S. Maybe you were in contact with some kryptonite