Low pulse rate

For the last couple of months I've been feeling really tired and sluggish. Sometimes dizzy at work. I have had hypertension since I was 22 (now 37) so I go twice yearly for a check up. But I've noticed that my pulse is between 55 and 63 bpm. My mom says I should see my Dr as my pulse is quite low (she is a nurse) but I still have about 4 months to go for my next checkup. I feel silly going to see him if this is nothing. What do you all think? Schedule an appt or wait?