I believe most disease is psycho-somatic. I have cured myself of things that I do not want to really expand, but anyway let's say they were extremely life threatening and 100% of the medical establishment would say that I required multi-thousand $$$ treatments.
I consider the human potential to be extremely high, but whether that potential is realized is contingent on what my conscious mind thinks and what myself does. If I accept medical help, my subconscious observes that act and registers that I am unable to self-cure myself. Thus I needed to prevent my subconscious from registering a subconscious admission of defeat. Let's say that I played multiple life & death gambles and I won. I trusted myself and I triumphed over my "problems".
What I can give you, is one tool that is extremely effective, even if it is deceptively simple: Focus on the word LIFE. Feel it. Repeat it. Feel it all the time. LIFE. LIFE. LIFE. Keep the concept of vitality in mind. "LIFE, LIFE, LIFE". Feel the words. Keep doing it. Close your eyes and do it for as long as you feel comfortable.
This is an extremely potent technique that can even deliver instant results.
I have had similar experiences. In one instance I suffered a real physical trauma to my body that resulted in objective physical changes that were clearly visible on medical scans. Mind-body medical healing does not imply the cause of the condition is 'in your head', but rather that a potential pathway to healing can come from your mind. This is the key insight required for any experimentation imo. We all identify ourselves (usually) as the voice of the conscious mind, but we are aware that control over most of our bodily functions comes from other parts of the brain (the unconscious and/or subconscious mind). With mind-body healing the conscious mind attempts to 'communicate' directly with those parts of the brain/mind that have control over the 'details' of how our bodies work. It only sounds weird because of conditioning. Complex arrangements of atoms & molecules inside our brains created our conscious minds, all you need to entertain is the idea that the 'mind' can somehow submit instructions back to the collection of atoms & molecules that make up our bodies and organs when there's a problem. At this time in human history we still don't know how this conscious mind-body communication happens, but imo there's enough evidence to suggest that it does exist, and to me it makes sense.
With my injury, despite feeling embarrassed, I spend time consciously visualising 'healing' happening inside the damaged area of my body. It sounds crazy, but so did the idea of 'atoms' to most early 19th century scientists. The cause of the problem was physical, but the path to healing for me included some conscious 'thinking', basically giving permission to the autonomic processes in my body to make things 'better'. This doesn't require any belief or 'faith' that your problem can be repaired either imo, it's more about communicating your conscious minds 'desire' to have the rest of your body 'attempt' some healing. Imagine driving your car into a mechanic's garage. If you just accept that your car is broken and do nothing, it'll stay broken. BUT, if you think the mechanic might be able to repair the car you have to ASK. If you don't ask the mechanic to work on your car he wont, and you'll never know if he could make the car work better.
I believe most people don't try very hard to 'ask' their non-conscious minds for help with physical ailments, they're more likely to pray to god than sit quietly trying to communicate requests to other parts of their mind. It definitely can't hurt, but most people are frightened by false impressions of what mind-body medicine is about. It sounds kooky but it's really not. Real physical problems being healed by real physical processes where the healing starts from the conscious mind communicating 'requests' to the parts of the brain that control all the autonomic processes in our bodies.