Here are 4 symptoms you need to know:
- Dull ache on both sides of the head
- Tightening of the next and jaw muscles
- ache builds gradually a few seconds before orgasm
- ache intensifies as sexual excitement increases
Source: Lee JW, Ha YS, Park SC, Seo IY, and Lee HS. Orgasmic headache treated with nimodipine. J Sex Med 2013;10:1893–1896.