my resting blood pressure and pulse rate have been relatively low for the last few weeks, currently around 110/50 and 50bpm , I have been experiencing bouts of lightheadedness, blurry vision and tiredness, especially after exercise. I can barely do my resistance training cause the weights take the energy right out of me.
Hello! Thank you for asking on Chat Doctor! Your symptoms may be related to deny Chat Doctor.  I recommend consulting with the GP for a careful physical examination, a resting ECG and perform some lab test like