It is wonderful to be able to manage symptoms using diet and other methods and I did this for about 25 years. Caffeine and sugar were occasional triggers but not causes, feet in a bucket of icy water for about 20 minutes would sometimes cut the leg symptoms for a half hour.
Eventually, when I ended up standing at my desk in work from 9 - 5, unable to be seated because of symptoms - and operating on mostly about 3 hours sleep nightly - the stress became too much and I succumbed to medication. Honestly, I'd have done anything to mask the symptoms. I guess it depends greatly on the severity of symptoms. I have it in legs, arms, shoulders 24/7. I could sit at my desk again.
This disease affects sufferers in different ways, in various degrees of intensity, in different parts of the body. What helps one sufferer does not always help another sufferer and it is suspected that RLS has several sub sections which each differ from the other by causation and in the success of differing ways to manage it.
Low ferritin blood serum is one trigger/cause which appears to be quite common amongst those at the severe end of the spectrum.
Happily the OP is not troubled every night which is a blessing and I wish OP and Faye as much peace from this condition as is possible.
The longer you can remain off medication the better.