Respected Hakeem Sahib, Assalam-o-Alaikum! I have a few spiritual experiences that I have tested myself. I used to have a severe headache normally. So I placed hand on my head and I recited Ya-Mujeeb-o initially three times, then 5 times and then 7 times, then 9 times, and then 11 times, and made dum on my head and my headache vanished. Every time it has to be recited for an odd number of times and dum has to be made. Meaning that first recite 3 times and make dum on hands and rub on the head, then recite 5 times and and make dum on the head, it is effective.

Redemption from The Pain of Legs and Knees: I often used to have this problem in summers that I normally used to have pain in my legs and knees. So I recite [وَ بِالْحَقِّ اَنۡزَلْنٰہُ وَ بِالْحَقِّ نَزَلَ] for an odd number of times for this and make dum and the pain vanish. By the grace of Allah Almighty, I recite this verse 3 or 7 times, and if the pain is severe then I recite this slowly and make dum. (A Daughter)