This is all terribly boring.
Things to try:
- Electrostim, starting 1x a day and moving to 2x a day.
- More water: start at 1 liter, move to 2, ultimately 3.
- Try magnesium before bed, in supplements or in pepitos.
- Eat more: sweet potatoes.
- Try ginger tea: cubes of ginger in hot water for 5 min.