Not sure why could also have to do with smooth progression leveling mods interacting.
Not familiar with a stat adjusting ring but the UOP offers a cobl options menu for stat fixing. That I've used many times.
If there were a complete needs mod made by one author who updated it for a year or more taking into account all the variables and common interaction problems - and tried to handle eating, sleeping, thirst, temperature, shelter ... all of that handled with internally consistent methods then yeah I'd be all over that.
But it doesn't exit.
Mods often will handle one or two variables and the authors test them with just their own mods or at best a limited load order and then get bored and move onto the next thing and even state no more support.
Do I have proof that these interactions between realism mods go wrong and bad things happen - no not really. Just experience. repeated experience.
With Fallout 3 the best two I've seen are
http://www.fallout3nexus.com/downloads/file.php?id=2125 - which tracks hydration, food, sleep. Combined with http://www.fallout3nexus.com/downloads/file.php?id=834 & http://www.fallout3nexus.com/downloads/file.php?id=5867 and you get a pretty immersive realism experience (all part of http://www.fallout3nexus.com/downloads/file.php?id=2761)
But better than that is http://www.fallout3nexus.com/downloads/file.php?id=11418 - which tracks caloric, nutritive, protein, hydration levels + sleep and rest and has stats adjusted according to temperature and activity. all under one umbrella and tested to to work with the best overhaul (and RI+triage) - and includes immersive indicators - there is no other mod quite like it.
light years better than stat twiddling realism mods of Oblivion. Duke's Hyrdrothermia + Hydration come the closest to this. He tries to immerse the player with immersive effects - most of the rest just attempt to annoy the player with more hoops to jump through.