Yes to the water temperature.... Unless it's just right, I can have a massive flare. Even if I have the temperature right and the water pump changes....then I can't warm up. Ldn keeps only most of the hot flares away....so as I am cold most of the time a warm shower does help.
Also I get very fatigued.... So rest is important....... But I also try to keep moving.....hard but I try....cooking is hard....I forget what I am doing.....so you are not alone.