Hi. Some more information is needed to opine. Do you have any other health issues like
diabetes or hypertension? Is this pain brought on by physical activity and relieved by rest.
There can be many causes for this kind of pain ranging from musculoskeletal(muscle related) to heart related to
vitamin B12 deficiency to nerve compression related.
Next Steps
Seek a consultation for detailed history and further evaluation.
If severe needs ECG and blood tests