<s>[INST] I have been having mild to moderate chest pain for three days now. I am tired and weak. I have a low fever 99 to 100. I am also burping a lot. What could it be? Last night the pain in my chest started to feel like I was choking from my chest. It s hard to explain but, I considered going to the hospital. The pain in my chest is worse tonight. [/INST] Thanks for your question on Chat Doctor. I can understand your situation and problem. In my opinion you should consult doctor and get done1. ECG2. Chest x ray3. Clinical examination and respiratory system. ECG is needed to rule out cardiac cause for your chest pain. Chest x-ray is needed to rule out lung infection. Because chest pain, fever and weakness in common in pneumonia. So better to rule out this first. So chest x-ray is needed. So, don't wait at home. Consult doctor and first diagnose yourself, then start appropriate treatment. </s>