I have a real good idea email me ***@****
night cramp is a multifactorial in origin, it may be considered as a diagnosis its self if the cause(s) was not clarified!!
you may need do extra investigations:
-blood calcium, glucose, saly (rule out any cause of electrolytes disturbance)
-kidney, liver function.
-malabsorption disorders.
-circulatory disorders (varicosis, insufficiency or sclerosis)
i hope you will be correctly diagnosed