Hi... Your current rib pain may not be associated with your old injury... unless there is malunion.. Don t worry... It can also be due to irritation due to dehydration or postural stress over the intercoastal muscles... If I were your treating doctor... I would advise you to have a x-ray done for your painful rib area...jus to make sure I am not missing out anything... Advised you to do.... Lot of icing frequently... Drink plenty of water .. Good sleep over a firm mattress... thorarcic mobilisation exercises... Good weight training schedule.....atlast 3 times in a week... Stretching and good recovery sessions like swimming...massage etc... Hope this is helpful for you.. kindly get back with x- ray incase you need further more detailed insight if your problem....