First visit after having PM fitted - Feeling 'drunk'!
I had my PM fitted on 8.3.21. My Diagnosis is for sinus bradycardia (resting HR about 45) and chronotropic incompetence. I know that on implantation, my basic HR setting was set to 60bpm and my mode is set to AAIR-DDDR. At this stage, I dont know for sure what other settings were made. Several people were kind enough to reply to my initial post and, as a result, I have a whole host of questions to ask at my follow-up appointment on the 29th March.
In the two weeks or more since having the PM fitted, I have confined my exercise to flat walking of 4/5 miles each day. I have noticed that during this my HR will increase to around 130bpm and, as it does so I feel increasingly light headed, tired and walk increasingly clumsily, as though I am drunk. After a couple of miles, I stop and have a rest for 20 minutes during which my HR will fall to 75 or so and then I walk back. Bizarrely, very often, when I walk back, my HR will not rise above 95 or so and I feel so much better. Quite often, I am able to walk much more briskly and purposefully. My gait is much more normal and I feel nothing like as tired or 'drunk'.
My questions therefore are these.
1. Is it possible (or usual) to feel increasingly more tired and uncoordinated as your HR rises as you exercise? (I thought an increase in HR meant more oxygen being pumped round the body so that the muscles could work more efficiently as the exercise calls on them to do more) and
2. Why could it be that when I do the same walk but more briskly, my HR doesnt increase to the same level on occasions, and I therefore feel better?
3. I guess the third question is that could these HR responses be as a result of some particular setting on the PM?
Thanks in advance for any replies. I am still trying to understand my diagnosis and PM and the above scenario and questions are what I have particularly noticed in the short time my PM has been fitted.