my 68 yo husband has had chronic AF for five years, had a global systolic dysfunction and CHF in Dec 2014. he is of normal weight, non smoker, nil allergies and nil alcohol abuse. suffers from anxiety, occasionally from panic attacks. has poor muscle tone. takes all his prescribed medications for AF. He wakes up around six times during the night to wee and I believe he suffers from sleep apnoea. How can we get rid of his nocturia?