looking at the history it seems that you have fracture
of lower end of radius and ulna after which there is stiiffness and pain which is very common in lower end of radius fracture especially if the fracture extends into the joint.
treatment of reflex sympathetic dystrophy
(RSD) is physiotherapy
exact type of treatment and prognosis cannot be adviced without looking at the x rays.
but i assure you that most of the time all the problems arising in such kind fractures
can be solved by only physiotherapy