I recall these events as they happened without exaggeration or fabrication.
Several years ago, I began to get very painful abdominal pains after passing urine. At times, the accompanying stinging sensation made me pass water very frequently. This lasted for some weeks before eventually I went to the doctor. After going to the doctor, I had an ultra sound scan on my bladder area, but nothing was found. Soon afterwards, I had agreed to go on a special dancing day at the Bridlington Spa, but, the night before, the pain was so discomforting that I told my wife, I didn't think I would make it. Just before I went to bed, I, yet again, went to the toilet. Strangely enough, this time, however, I felt a sudden very sharp pain and realised I had passed something. Looking in the toilet pan I could see the offending object, which I retrieved. The next morning, I felt no pain, went dancing, had an excellent time and had no ill effects.
I actually took the object to the doctors(it was brownish, hard, crystalline, and about 1/3 cm across) who told me immediately that I had passed a bladder stone. Since then I have had no particular bladder problems, and certainly no pain whatever.
At no time did I pray, or even think about praying.
So, if I go by Alan's way of thinking, I suppose the moral of this story might be: if you want to help your body recover from a bladder problem, it would be advisable not to pray at all.
Actually, what I really think in my case is that praying would have been completely superfluous, even as a placebo effect. Much better for me to have used whatever placebo effect is useful by some other means which I have confidence in. Oh, and of course, it goes without saying, that many ailments absolutely need the help of the Medical profession.