no other changes, working out and water have been the same before and after (always worked out quite a bit, always drank quite a bit) same as appetite: I did not restrict sodium for blood pressure reasons, I was definitely surprised when I saw it that low and remain low since as all my life prior I've always been around the same higher but still normal bp, the sodium intake was the only change I made (of course this also implied some dietary changes, like no bread anymore due to sodium contents, but nothing else really major)

Would definitely be interested in finding more studies on extremely low sodium diets (especially on possible long term side effects), but finding information has been quite difficult.