The former boyfriend of fellow recording artist Rihanna suffered the episode while he was he was working in a Los Angeles studio, said spokeswoman Nicole Perna.
The 24-year-old US star was examined by a doctor but did not got to hospital after the non-epileptic seizure on Friday morning.
Brown took to Twitter on Saturday, saying:
“They won’t love u until u r a memory…”
Ms Perna said the “continued onslaught of unfounded legal matters and the nonstop negativity” contributed to Brown’s illness.
The singer has been on probation since he assaulted his then-girlfriend Rihanna in 2009.
A judge last month revoked his probation and ordered a hearing over an alleged hit-and-run in May.
In February, authorities investigated an alleged fight between Brown and singer Frank Ocean at a recording studio. Ocean did not press charges.
The same month, Brown crashed his Porsche while being chased by paparazzi.
Then last month he was charged with hit-and-run offences and driving without a valid licence.
He is suspected of driving into another car that was stopped at a red light in the San Fernando Valley on May 12 and refusing to give the other driver his licence or insurance information.