I am esraa i am 20 years old, last week i felt strong pain on my chest and i also note swelleing in two bones of my ribcage ,the pain get strong when i laught or cought?

Costochondritis: This is inflammation of the rib where it attaches to the breast bone or sternum. It can be quite painful, and is often caused by coughing or heavy lifting or pushing. An ice pack may help, and ibuprofen helps with pain and the inflammation if taken consistently 3 times a day. It may take several weeks for this to resolve. If it doesn't be sure to get it checked out.