I was saddened by reading your letter, as I can understand your frustration. I am a medical missionary and I would like to share a few comments. Although I believe that most alternative medicine is beneficial (not urine or accupunture), even when we apply beneficial remedies, there still has to be a rythme and reason for what we apply and how we apply it. This knowledge can only be attained by divine revelation through God's written word and the prophetic voice. There are many many aspects to cancer and tumors I.E. How much Oxygen are you getting, how much sunlight, how balanced was your diet how is your state of Mind, this can be a big one because if your not confidant that God is with you then Negative hormones can be released through the body.
Many question why some get healed and some don't. Well the bottom line is you didn't either have the knowledge, faith or proper application of the remedies to the extent to reverse the disease threshold in the body. The human anatomy is extremely complicated and disease is also a complicated business. I'll be keeping you in prayer.