It's interesting I came across your post. I've been searching the internet for similar conditions for my mom. She has Parkinsons and has had it for only 4 1/2 years and has recently been getting breathing problems.
She complains that she can't breath either and her nose seems to be clogged and she thinks her heart is going to stop. Her pressure also increases. The doctor today said he thinks it's anxiety, but these symptoms come up when her meds are wearing off.
I know your post is fairly recent, but wondering if you have found anything for your father? How is he doing? My mother has been taking Ativan, but the doctor recommended Buspar today so she won't get addicted to the Ativan, also it does seem to stop working after a while so he is recommending the other drug.
Keep me posted about your father and I will do the same if we come up with anything that helps.
Exhale out, once per second, with a little force, through the nose, as if blowing your nose.The breathing in will happen automatically.
Do 60 to 300 exhalations twice a day.
This is kapalbhati pranayam.
Let me know your progress at some point, if you follow this technique.
December 30 ,2011
My mother has developed the same problem. Periods of rapid shallow breathing that leaves her fatgued and unable to communicate for days. 4.5 years since PD diagnosis. Dr. would like to try adivan and see if its anxiety orbphysiological in nature. Did the adivan work to alleviate your mother's breathing issue?
On another note, my mother has also developed nose drooling. She experiences times when her nose just seems to pour like a faucet. Have you seen this with your mother?
Hope you can shed some light.