Glad that you found us. There is much learning to be had here from several thousand folks who share your new "friend".
Might explore the buttons, left, starting with the OUCH button and multiple internal links. Sending along a couple of links to get you started but feel free to ask all the questions you wish.
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Cluster headache.
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(Orphanet Journal of Rare Diseases)
[Easy to read; one of the better overview articles I've seen. Suggest printing the full length article--link, line above--if you are serious about keeping a good medical library on the subject.]
Leroux E, Ducros A.
ABSTRACT: Cluster headache (CH) is a primary headache disease characterized by recurrent short-lasting attacks (15 to 180 minutes) of excruciating unilateral periorbital pain accompanied by ipsilateral autonomic signs (lacrimation, nasal congestion, ptosis, miosis, lid edema, redness of the eye). It affects young adults, predominantly males. Prevalence is estimated at 0.5-1.0/1,000. CH has a circannual and circadian periodicity, attacks being clustered (hence the name) in bouts that can occur during specific months of the year. ALCOHOL IS THE ONLY DIETARY TRIGGER OF CH, STRONG ODORS (MAINLY SOLVENTS AND CIGARETTE SMOKE) AND NAPPING MAY ALSO TRIGGER CH ATTACKS. During bouts, attacks may happen at precise hours, especially during the night. During the attacks, patients tend to be restless. CH may be episodic or chronic, depending on the presence of remission periods. CH IS ASSOCIATED WITH TRIGEMINOVASCULAR ACTIVATION AND NEUROENDOCRINE AND VEGETATIVE DISTURBANCES, HOWEVER, THE PRECISE CAUSATIVE MECHANISMS REMAIN UNKNOWN. Involvement of the hypothalamus (a structure regulating endocrine function and sleep-wake rhythms) has been confirmed, explaining, at least in part, the cyclic aspects of CH. The disease is familial in about 10% of cases. Genetic factors play a role in CH susceptibility, and a causative role has been suggested for the hypocretin receptor gene. Diagnosis is clinical. Differential diagnoses include other primary headache diseases such as migraine, paroxysmal hemicrania and SUNCT syndrome. At present, there is no curative treatment. There are efficient treatments to shorten the painful attacks (acute treatments) and to reduce the number of daily attacks (prophylactic treatments). Acute treatment is based on subcutaneous administration of sumatriptan and high-flow oxygen. Verapamil, lithium, methysergide, prednisone, greater occipital nerve blocks and topiramate may be used for prophylaxis. In refractory cases, deep-brain stimulation of the hypothalamus and greater occipital nerve stimulators have been tried in experimental settings.THE DISEASE COURSE OVER A LIFETIME IS UNPREDICTABLE. Some patients have only one period of attacks, while in others the disease evolves from episodic to chronic form.
PMID: 18651939 [PubMed]
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MANAGEMENT OF HEADACHE AND HEADACHE MEDICATIONS, 2nd ed. Lawrence D. Robbins, M.D.; pub. by Springer. $50 at Amazon.Com. It covers all types of headache and is primarily focused on medications. While the two chapters on CH total 42-pages, the actual relevant material is longer because of multiple references to material in chapters on migraine, reflecting the overlap in drugs used to treat. I'd suggest reading the chapters on migraine for three reasons: he makes references to CH & medications which are not in the index; there are "clinical pearls" about how to approach the treatment of headache; and, you gain better perspective on the nature of headache, in general, and the complexities of treatment (which need to be considered when we create expectations about what is possible). Finally, women will appreciate & benefit from his running information on hormones/menstrual cycles as they affect headache. Chapter on headache following head trauma, also. Obviously, I'm impressed with Robbins' work (even if the book needs the touch of a good editor!) (Somewhat longer review/content statement at 3/22/00, "Good book....")
HEADACHE HELP, Revised edition, 2000; Lawrence Robbins, M.D., Houghton Mifflin, $15. Written for a nonprofessional audience, it contains almost all the material in the preceding volume but it's much easier reading. Highly recommended.
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Here is a link to read and print and take to your doctor. It describes preventive, transitional, abortive
and surgical treatments for CH. Written by one of the better headache docs in the U.S. (2002)
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Multimedia File Viewing and Clickable Links are available for Registered Members only!! You need to

or

ALL NEW!! HEADACHE 2008-2009
The new 72 page Headache 2008-2009 is hot off the press! Click here to download the PDF instantly! (free)
If you would like a bound copy, send $12 (includes shipping) to
Robbins Headache Clinic
1535 Lake Cook Rd.
Suite 506
Northbrook, Ill.60062
OR call 847-480-9399 to use Visa or Mastercard.
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Your mention of limited docs: many of us have had to educate our docs so that they can give us good care. If you are blessed with an open minded soul, we can send medical literature which you can give to the doc, the long article at the top, would be a good starting point.
Having a headache specialist would, of course, be first choice but they are not readily available to many. If you want to explore finding a specialist, get back for advice on seeking.