| jag(noun, flash, burst, outbreak, flare) |
| matter(noun, disorder, condition, complication, complaint) |
| outburst(noun, flash, burst, outbreak, flare) |
| paroxysm(noun, flash, burst, outbreak, flare) |
| pest(noun, disorder, condition, complication, complaint) |
| pestilence(noun, disorder, condition, complication, complaint) |
| pickup(noun, flash, burst, outbreak, flare) |
| pip(noun, disorder, condition, complication, complaint) |
| plague(noun, disorder, condition, complication, complaint) |
| recrudescence(noun, flash, burst, outbreak, flare) |
| recurrence(noun, flash, burst, outbreak, flare) |
| renewal(noun, flash, burst, outbreak, flare) |
| rush(noun, flash, burst, outbreak, flare) |
| sickishness(noun, illness, unsoundness, indisposition, unhealthiness) |
| spate(noun, flash, burst, outbreak, flare) |
| spell(noun, disorder, condition, complication, complaint) |
| spree(noun, flash, burst, outbreak, flare) |
| spurt(noun, flash, burst, outbreak, flare) |
| surge(noun, flash, burst, outbreak, flare) |
| unwellness(noun, disorder, condition, complication, complaint) |