I have a small left side chest pain for about 6 months . i had ecg, x ray, eco and come back fine. the pain is not severe bat is itchi. some days fine?

6 months chest pain: In a 25 year old, these test results would likely be normal. But 6 months of the discomfort you describe is something that should be evaluated. You describe symptoms as 'itchy' which sounds like a more external chest wall or skin problem. A chest wall muscle strain or rib injury might be the cause, and can last for months, but you may need to see a dermatologist for a localized skin condition.