The "Look At Me Now" singer suffered a non-epileptic seizure early Friday morning while he was working in a Los Angeles studio, Nicole Perna said via email.
Perna said Brown's doctor attributes the episode to "intense fatigue and extreme emotional stress, both due to the continued onslaught of unfounded legal matters and the nonstop negativity."
The doctor examined the 24-year-old but he wasn't hospitalized.
The singer has been on felony probation since the 2009 beating of then-girlfriend Rihanna.
Brown has been in and out of court since the Rihanna assault, making reports on fulfilling the requirements of his five-year supervised probation term.
A judge revoked his probation last month and ordered a hearing in a May 12 hit-and-run case, in which he is suspected of rear-ending a car stopped at a red light in the San Fernando Valley.
Brown allegedly refused to give the other driver his license or insurance information. The driver of the other car said Brown was polite at first, but a confrontation arose after she kept demanding identification.
The woman said she took a picture of Brown and a passenger, "and then they went ballistic," shouting expletives and grabbing at her camera before speeding off.
The woman said she didn't know who Brown was until a friend called and told her about an online report of the incident.
In February, the Sheriff's Department investigated a fight between Brown and singer Frank Ocean at a recording studio, but Ocean declined to pursue a battery case against Brown. The same month, Brown crashed his Porsche while being chased by paparazzi.
Brown won a Grammy in 2011 for Best R&B Album with "F.A.M.E."