I am a 29 year old woman a little more than a month into my first cluster cycle. Pretty scared, to be honest.
I (kind of) just got an official diagnosis yesterday. I went to a headache clinic, and when I gave the resident my copious records I have kept this month, she immediately diagnosed as clusters. However, when her attending came to confirm, he said he wasn't comfortable officially diagnosing cluster headaches because I am a woman in her 20s (and apparently the more common demographic is male smokers in their 50s). He is calling it "severe migraines with many cluster