Most organic things aren't. But there is a rule I came up with as a result of witnessing several miraculous cures. If the condition is something the body did to itself because of stress, chances of healing are good. If it is degenerative disease, chances are virtually nil. We don't know the power of the mind to heal, if circumstances are right.
Mental things are a snap.
Physicals are tougher. Through extensive experimentation, a privilege I have because I don't charge and I don't have to conform to convention, I have discovered extremely rapid methods of healing many conditions. I know what can be done with a very powerful placebo, cures I can't get. No professional is interested in getting anybody well in 5 minutes. I've done it hundreds of times.