My husband is 39 yrs old. He is 5 11 and weighs about 260 lbs. About a month ago, he was suddenly feeling lightheaded and dizzy periodically throughout the day and frequently complains of chest pains or tightness in his chest, but chalks it up to anxiety. Last night, he was having those pains along with shortness of breath, pain in his legs and numbness in his hands and a low grade fever of 100.3. Today, he is still experiencing the shortness of breath and leg pain. Should he go to the ER?