The radial side of my wrist has a painful bulge since luggage fell on it about 6 months ago. no longer painful to touch, but hurts when i move thumb.?

Go to Orthopedic: There could be a missed fracture of the navicular bone ( or wrist bone) that required immobilization covering the thumb. He might developed already a remodeling of the affected bone. Consult with an orthopode asap.

Not enough info: This could be anything from a sprained wrist to a poorly healed fracture or a ganglion cyst. I would see a hand surgeon to have it evaluated.

Your use of the word: "radial" implies you know more about it that you wish to seem like you do.