Experience with vagus nerve stimulation

[Laura_B]

I'm wondering about folks' experience with vagus nerve stimulation to help ME/CFS. I tried TaVNS (transcutaneous auricular Vagus Nerve Stimulation) with a TENS unit and an ear clip awhile back and crashed, but I'm not sure if the crash was caused by the TaVNS or if it was coincidental. My doctor thinks if I can stick with it for about four months (without crashing) I might get some serious benefit, and I'm wondering if any of you have had that experience and what settings you used (TENS unit settings, how long you kept it on, time of day, etc.). Also, has anyone found vagus nerve stimulation to cause a crash or found other effective ways of stimulating the vagus nerve that have been helpful? Any additional info or ideas would be much appreciated.

Thanks for your help!