Hello and welcome to HCM
The symptoms that you have mentioned do not seem to be related to menstrual cycles.
The symptoms of cramps, feeling sick, constipation
, frequent urination
suggets some metabolic disorder.
I would suggest you to get serum calcium levels done after consulting your physician.
An increase in serum calcium levels cause such symptoms.
A clinical evaluation will mthrow more light on the problem.
Thanks and take care
Dr Shailja P Wahal