Hit my forearm when i fell. a little bruising but it looks fine. aches, is sore & uncomfortable rotating/flexing wrist. should i get an xray?

Need exam: X-rays really can not be ordered over the computer. you need a Doctor who examines you to order any diagnostic testing as they would then get the results and follow-up with you as appropriate. Take some Anti-inflammatory meds (NSAIDS such as Ibuprofen if not allergic to them) and see the Dr. for an examination and any needed testing. Best wishes.