I was diagnosed as having parkinson about 25 years ago and I have been on medication for the same. Recently I underwent dat and pet scan. Dat was negative for parkinson. Pet show depression. I have gait problem. Problem in movements, poor balance. I have consulted top neurologist but same medication which helps but ;not much. Ropark 2 mg and amantrel tds. Relgin 1 mg od, pacitane half od. Is there any hope for improvement. If it is not parkinson what it is? Charges for the consultation if any will be paid.