Check this out-
http://www.medicalinsider.com/adrenal.html

serious toxin exposure, two pregnancies, early onset menopause, hypothyroid, hormones shutting down, feeling increasingly stressed and not right. then pd symptoms. i will repeat this with every opportunity. if you have muscle weakness that causes you to feel like you aren't strong enough to stand, if you have dystonia or off dyskinesia, I suggest you ask your neuro if you could benefit from nortriptyline. I have permission to play with the dosage and i'm getting less dystonia.i can get rid of that awful weakness and go from being unable to stand to water aerobics.

like a broken record i repeat:

it also boosts norepinephrine. it's also considered to be an anti depressant but i take it to specifically lower acetylcholine and bring whatever balance it can to my system.The more acetylcholine, the weaker I feel. in the morning, dystonia is most of the time pretty bad. But with the increased dosage, i think it's getting more manageable.

good site for what's going on. thanks rick.