What is the danger of low pulse (52) with high BP 170/95?

60 year old male. headache.On meds for hypertension,atrial fib and type 2 diabetes. Bp has been controlled by meds but sudden onset of increased BP and decrease in pulse rate has developed the last few days. Very tired.Had a spell of nausea and vomitting at onset. Normal pulse is usually 64 due to taking Lanoxin for heart problem.