 [ Symptoms ] i have low blood pressure low heart rate tired and lack energy is it normal [ Disease ] hi this is not normal to have 38bpm of course and combined with low blood pressure as you are prediabetic then you must be careful of the complications that would be a cause of metabolic problems such as hypothyroidism or other problems in the heart which can be diagnosed with cardiac echo and ecg you need to see a cardiologist and follow some lab investigations to get assured everything will be ok… regards