A headache that begins suddenly then occurs every day over a long time is called a new daily persistent headache (NDPH). The defining feature of this type of headache is that you vividly remember the circumstances, sometimes even the exact date, of the first headache.

Reference : Written by Nancy Moyer, MD,

Medically reviewed by Deborah Weatherspoon, PhD, RN, CRNA, https://www.healthline.com/health/headache/new-daily-persistent-headache , july 1st,2019