We have a computer connected to the TV in the living room and I can feel when the HD is in overdrive and tell DH to shut it off
I find that symptoms don't increase as bad with my laptop as with the ancient desktop I was using until about a year and a half ago, but there is wifi in the house now and a tangle of TV/cable wires plugged into the wall directly behind where the head of my bed is. A dumb "smart meter" was installed on the house about five years ago and I don't know if that is having an effect too. My nervous system has not felt "at rest" for more than several years and it has gotten worse over time.
My sodium intake is moderate and I have difficulty hydrating (polyuria), so I don't know if reducing sodium would be the answer to the cramps, but I will look into it. I didn't know vitamin A would affect calcium either. My bones are plenty strong for my age and calcium is plentiful in my diet, so I would be surprised if it's a problem. I'm currently trying Mg oxide instead of the mixed chelates form I was taking before. I seemed to tolerate it and it's a balanced formula (Nature's Way) that contains some calcium and B6 too, and maybe something else, but I thought I'd try the oxide for comparison. I had never noticed any special benefit from malic acid formulas of Mg, and honestly, Mg salts in the bath are not relaxing for me either.
I am still experimenting with MB12, dibencozide, and Hydroxy B12. Today I increased dibencoside to 3/4 of a pill + 2.5 mg MB12 + 2mg Hydroxy B12 in divided dose (+ folinic and Mfolate). I felt - maybe - very modestly more alert this afternoon than I've felt in awhile but other than that, if even that, have not felt any real energy boost from B12, or any other good effects. I will continue increasing it slowly while experimenting with the different forms, but I prefer to avoid super mega doses and will see how things play out over the next few months with the things I'm currently using.