Hi ClusterHeadSurvivor,
A bit of info lifted from research submissions, one of the largest single studies ever completed on 1134 individual survey participants. The document is hosted on this site, which can be located here: Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

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I hope you find this helpful, ClusterHeadSurvivor.
I am not at all suggesting causal, or casual links between any two known conditions. I defer to the expertise and collected data of the principal investigators of the survey.
The 15 page paper is best read in it's entirety, so data appear in context. It's not good practice, but at my peril, I've "cherry-picked" a section for you.
Cluster Headache in the United States of America:
Demographics, Clinical Characteristics, Triggers, Suicidality,
and Personal Burden*Todd D. Rozen, MD, FAAN; Royce S. Fishman, BA
"A large percentage of survey responders stated that they had a family history of migraine (52%). A family history of Parkinson’s disease was also ascertained, and this occurred in 5% of the total cluster headache population."
"
Concomitant Medical Conditions in Cluster Headache Patients (Fig. 1).— A personal history of depression occurred in 24% of the survey responders, while 14% had a history of sleep apnea, 11% restless leg syndrome, and 9% asthma. Interestingly, a very low percentage had known cardiovascular disease (myocardial infarction 1%, bypass surgery 0.3%, and coronary stent placement 1%). Strokes were rare occurring in only 0.2%. A diagnosis of emphysema or chronic obstructive pulmonary disease (COPD) was noted in only 2%, while lung cancer occurred in only 3 patients or 0.3%. Peptic or duodenal ulcer disease
was noted in only 5%, while diabetes occurred in 3%."
"In regard to familial medical conditions, Parkinson’s disease occurred in 5% of survey responder families. This appears, however, to reflect normal population expected lifetime risk of Parkinson’s and does not suggest a familial risk factor."
I hope this helps.
Cheers, Ben.
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Quote:If you get Parkinsons disease, CH's did'nt cause it. Is that clear enough.
Hoppy.
I apologise to the original poster, "ClusterHeadSurvivor" unreservedly on behalf of all Aussies, we're not all this rude.
Current data does not appear to definitively indicate, nor exclusively rule out links between conditions. (Again, I defer to the literature and expertise of Scientists and medical researchers) This sort of ignorant, if not sweeping generalisation, Hoppy, coupled with your affinity for rudeness is but one of many reasons why we in Admin had to make the very difficult decision to revoke your membership privileges from the Aussie CH site.
I've made many an apology and extensive reparations to Oz site users for Hoppy's comments in the past, but, growing tired of seeing my research plagiarized and Mal-adapted here, I have one last piece of research for Mr Hopkins. Suggested reading:
Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

The supporting study: Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

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Read that document very carefully, Mr Hopkins, or you risk simply reiterating Dunning & Kruger's research.
Your friend, retired Moderator and Admin, back at the Oz CH site, Ben.
Apologies to ClusterHeadSurvivor, I fully expect that this thread has now been entirely derailed. I hope the information I provided is of some use and puts your mind at ease.