constipation and electrolyte, hormone imbalance?

hello everyone i am new to this group and have suffered with constipation for so long that i am feeling completely desperate, i am so grateful to have discovered this forum and that there are others out there with similar experiences - i have not had any luck with diet changes or fibre/magnesium supplements and someone suggested that electrolyte imbalance, hormone imbalance and metabolic alkalosis are likely... has anyone here had any experiences with these problems or found effective treatments?

thank you so much in advance.