I was on a high dose of blood pressure medication, and I had been feeling very tired and weak. I used a blood pressure machine that also checked my pulse, and both were very low.
I went to my doctor and told him about my situation. After checking my apical pulse, he decided that he should decrease the dosage of my medication.
After a few days, I started regaining strength. He had told me to come back in a week so the nurse could check my heart rate. She said it was normal, and I could tell a big difference.