My mom is 82 and has CHF for over 8 yrs. She has a defibrillator/pacemaker, and had it upgraded in April 2010. That evening in the hospital, she suffered her second heart attack. Her BP has been pretty constant, normally around 125/45 (approx.) for several months, but in the last couple weeks, it has been fluctuating and has topped at 151/55. She has slowly gained about 3 lbs. She no longer needs to urinate at night. Is something actually going on here and what should we do?