Novum cingulitis (“the new belt blues”) is a psychogenic condition generally contracted on obtaining a new belt in a martial art, such as BJJ, where the patient’s abilities are constantly tested against those of their peers. Typical symptoms include tenseness, a sense of guilt and unworthiness, and constant low-grade nervousness, and may include a period of mild depression. Other common symptoms include paranoia (though this is controversial as some argue that everyone is, in fact, out to get the patient).
Novum cingulitis has no cure, but the condition is self-limiting and will resolve on its own, typically ⅓–½ of the way to the next belt (when a new outbreak may occur). Common home remedies include sandbagging (q.v.) and practicing martial arts without hard sparring, where the additional measure of “pulling rank” may also be employed. Modern medical science recommends against these extreme measures, however, and suggests a healthy diet, vigorous exercise, plenty of rest, relying on your teammates, and colloquially, “manning up”.
Though poorly documented in the literature, novum cingulitis is a very common condition. If you yourself practice BJJ and have never suffered from the new belt blues, you probably know someone who has.