###Human: What can be done for sudden chest and back pain? ###Assistant: Hello. I reviewed all your performed tests (attachment removed to protect patient identity) and would explain as follows. Your total cholesterol or HDL ratio is high. This means that you should make some diet modifications in order to reduce cholesterol levels. Starting statins may be needed. Your vitamin D levels are slightly low. For this reason, it is necessary to start Vitamin D supplements. Your other tests are normal. But considering your symptoms, I would recommend performing an exercise cardiac stress test to investigate for coronary artery disease and a fibrogastroscopy to investigate for acid reflux.