<s>[INST] Hi I have pain in the upper chest area near the armpit it only hurts when I move suddenly like bend my neck to the left quickly, when I bend my neck forward every once in awhile, and it get s aggravated after lifting boxes at work. over the course of two weeks it gets better then returns after lifting boxes. I do not have shortness of breath, and it does not get worse after fatty foods either. Any help would be greatly helpful. Thank you for your time. [/INST] Thanks for your question on Chat Doctor. I can understand your problem and situation. In my opinion you are having musculoskeletal pain mostly because it is associated with movement and heavyweight lifting. But better to rule out cardiac cause first. So get done ECG. If ECG is normal then no need to worry about cardiac cause. It is musculoskeletal pain mostly. So try to follow these steps for better symptomatic relief in musculoskeletal pain.1. Avoid heavyweight lifting.2. Avoid strenuous exercise.3. Avoid bad postures in sleep.4. Avoid movements causing pain.5. Start painkiller and muscle relaxant.6. Apply warm water pad on affected site.Don't worry much, you will be alright. </s>