Here is what I’ve done so far. Be aware that I am VERY reactive – a person who gets side effects from every medicine out there and gets buzzed off one glass of wine, so factor that in.
I tried the Schumann 4 (because, yes, Bob, I fell for the hype ;-)) first over my solar plexus because another poster had mentioned having success there. Bob had said start low and slow, so I experimented with 15 -30 minutes at 4 and 9 intensity. The first time I tried 9, I had instant nausea (very reactive), so I dropped to 4. I had slight nausea each time I used it after that, but at 4 it was minor, so I decided this meant my body was reacting, which I wanted. Each time I also got a head rush feeling. I have had this from really good acupressure and acupuncture sessions, where it feels as if energy is literally streaming through my body and out of my head. Most folks (including my husband), would probably feel nothing.
Each time, I had a lift of the anxiety about 4-10 minutes in, accompanied by a general sense of relaxation. The lift usually lasted a few hours, then the anxiety seemed to creep back in. A caveat is my husband had pneumonia and had just broken his leg, so that kept the external stress level high. Also, had this not been portable, I never would have been able to experiment while dealing with hubby. My last try was at 9 again for 25 minutes. At 24 minutes, the nausea kicked in pretty badly, so I stopped.
I decided to switch gears and try a different placement, figuring having it over my digestive area probably contributed to/caused the nausea issue. So, I moved it to my femoral triangle. I tried left and right, with similar issues (including slight nausea) and the addition of the need to urinate, lol. Again, very reactive! I did not get the same degree of anxiety lessening as with the solar plexus, so decided again to shift gears.
I have also been struggling with depression, so went to the 30 minute TMS protocol. I experimented a bit with finding the best placement. Actually, I had done my research and knew that the dorsolateral prefrontal cortex was a good target, but had trouble finding it until with additional time on research I finally discovered this chart:
https://www.researchgate.net/figure/The-six-standard-tDCS-configurations-simulated-in-this-study-targeting-A-primary-motor_fig10_230599493
So, I had moved the P9 around quite a bit on the left side of my head, and found that EVERY PLACEMENT WORKED, some more, some less. The very first time, when I think I had actually secured it over the inferior frontal gyrus (based on another posters notes for what worked), I had an incredibly elated mood that had me smiling for the first time in days for no apparent reason other than feeling better. This had also happened to me once after I was in a depression and had an amazing acupuncture session. The improved mood and lessening of anxiety lasted much longer with all placements of the TMS on the left frontal area of my head. I have been doing 30 minutes pretty much daily for a week and feel as if the depression is mostly gone. Another caveat is that I have been taking fish oil and probiotics while weaning off antidepressants because of the many side effects for about 2-3 weeks, so that may be kicking in as well. I am now sticking with the dorsolateral prefrontal cortex placement and continuing the 30 minute protocol. My anxiety is also much better, and when I start to feel it kick in, that’s the time for my daily session.
As for synergy, I also have a Bemer mat and a David Delight AVE device that I use most days. On the days when I have used those AFTER any session with the P9, it definitely feels like they are more impactful.
I have tried most of the same things with my husband, and found that he gets no immediate effects but I have definitely noticed an overall improvement of his mood with lessened depression after I started the TMS with various head positions. I had also started him on the right side by accident (hey, it was MY left 
) but have now switched to the left. Again, caveat, he has gotten over the pneumonia which obviously makes him feel better and had upped his mirtazapine a few weeks ago, so those may be a factors as well. I am going to try switching to the 60 minute protocol with him to see if he gets more from that.
Final note, I bought some inexpensive cloth headbands and am using them to more easily secure the device during the TMS protocols. Hope this helps! Bob, I’ll post more in a week or so if I have any new data to report.
