 [ Symptoms ] i tried cocaine a week ago and i never used it i am supposed to take a saliva drug test in 3 days will it detect it  i also tried marijuana the same day i do not know if i should be worried or not i do not do any other drugs besides what i am prescribed by my doctor recently [ Disease ] i am afraid that numbness could be caused by peroneal nerve compression by the screws you need to see an orthopedic surgeon for revision of the current status as if it is ok to remove the rod and screws … i think you have gained weight recently and that could be a cause try to lose weight also as possible increase your calcium intake vitamin d