Hi , welcome to healthcare magic
I think that it would be a good idea to get an Xray done since you are still having pain 3 weeks after the injury
. In most cases the pain should have resolved in that time period.
If the bone was fractured, it would have already started to repair itself, the problem would be whether the fracture is aligned correctly and also it may heal slower without intervention and with increased risk of complications.
A closed fracture normally presents with significant pain, swelling, difficulty with moving the area involved, in some cases deformity
It may not be fractured and the pain may be as a result of another complication of the fall such as injury to the ligaments, tendons or muscles however you will need to be assessed by your doctor to determine the exact cause.
I hope this information is helpful to you and that you feel better soon