He's been suffering from cluster headaches for weeks.
Он страдает от кластерных головных болей уже несколько недель.
Definitions
A cluster headache is a severe, recurring headache that typically affects one side of the head, often around the eye. These headaches occur in cyclical patterns or clusters, with periods of frequent attacks followed by remission periods. They are known for their intense pain and may be accompanied by symptoms such as watery eyes, nasal congestion, or restlessness.
