I should have premised my comments by saying that there are obviously wonderful doctors, drugs, technology, etc. I did not wish to minimize the contributions made by literally millions of health care workers of all stripes. It’s just very important to know what you’re up against.
I can’t really give specific advice to individuals, but there is an almost unlimited amount of information on the net. The most important thing I can tell you is to trust your own intuition. Believe in yourself.
As far as sex with yourself is concerned, I believe the healing aspect of sex has to do with hormone secretions from each party, although I am no expert in this field (just ask my ex-wife :).
