thanks for writing us..
Dont worry.. in case of CHF if B.P is maintained upto 100 SBP without any symptoms it is okay..
As you are on high doses of diuretics, your cramps are due to dyselectrolytemia
You go for serum sodium, potassium, calcium and magnesium
check up and meanwhile you can start
syrup. potassium chlorite
Get back to me after investigation, will be happy to answer you