Hello, what were your original symptoms?
Who told you that you do not have Parkinson's Disease?
What symptoms took you into the hospital?
Diagnosis of parkinson's disease is usually through observing a 'pill rolling tremor' at rest, and a specific type of gait. When you get used to taking the medication then it usually improves the symptoms for a short while before the tremor and walking problems occur again.
Can you be specific about your current dose of the medication?
Do you mean that when you take the medication (leevodopa and bromocriptine) you can not walk or talk at all?
Although we must not ignore the medication as a possible cause of your symptoms, it is also important that other causes of your symptoms are explored too. Have you seen a neurologist to rule out a stroke? I would suggest that you need a CT scan of the head.
With respect to the medication, if you do not need it (assuming that you do not have Parkinson's disease) then we would normally recommend stopping abruptly, and treat nausea etc with anti-emetics.
What examinations and tests have you had so far?