Welcome to Healing well.I hope you get other replies besides mine.Sorry to hear about your dad,but PD isn't the end of the world unless we choose to make it that.There are many effective meds to treat it such as Mirapex,and requip a very similar drug.I have been on mirapex for several years,and have no adverse effects from it.Having said that I will also say that everyone reacts differently to the same drug in both side effects,and effectiveness.I would caution with mirapex not to allow dad to drive untill you see how he reacts as it can cause extreme fatigue in some.You mentioned anxiety,and this also is a symptom of PD..Watch for depression which occurs in 40 % of those with PD.Both can be treated very effectively.Symptoms of PD differ greatly amoung individuals this is one of the reasons it is difficult to diagnose.I would definitely see a movement disorder specialist as they have the best handle on PD,and treatment . I wish you and your dad the best. Ed