My husband, 68, is having weakness, heart rate around 112, regular, palpitations with exertion, bp112/76. He takes lisinopril- hctz daily and a hormone testosterone cream. This weakness and palpitations is new since this am. He spends a lot of time outside....we live in GA. What do you think is happening. I ve encouraged fluids and higher electrolyte intake with liquids and foods. Should we go to the ER? He is not having pain anywhere.