Been having chest pinches&pulls since march esp with movement involving chest. have done echo,ekg,xrays all normal.can costochondritis last this long?

It can be chronic...: Hi! Sorry you're not feeling well! Costochondritis can actually last for over a year. Stretching and NSAIDs like ibuprofen can be very beneficial (I suspect you're probably already trying these); sometimes, however, an injection of local anesthetic is necessary for cases that last many months. It sounds like you've had a good workup so far (echo, etc.). Did they also rule-out blood clot?