Chemical Imbalance triggers too often

[Stadler76]

Describe the bug

Once I get the mutation 'Chemical imbalance' I'll get spammed with its effects. Sometimes I suffer from more than half of them in a single hour. It can even happen that I get the same effect three or more times in a single hour.

Looking at the this chunk in suffer.cpp shows, that instead of choosing one effect every x hours it can occur, that you get every effect at once, if unlucky.

@Maleclypse suggested, that it should be changed to pick 1 effect every 2 to 4 hours instead. And I'd say, it should be moved to an EOC instead of being hardcoded.

Steps to reproduce

1. Get the 'Chemical Imbalance' mutation. For example through the debug menu.
2. Wait for a day or two and see what happens.
3. Get spammed with its effects.

Expected behavior

I only get one effect every few hours.

Screenshots

Screenhot with only the bad effects of Chemical Imbalance:

Versions and configuration

• OS: Windows
  • OS Version: 10.0.19044.1889 (21H2)
• Game Version: 0.F-10856-gb0bcd854c9-dirty [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  No Fungal Growth [no_fungal_growth],
  Bionic Professions [package_bionic_professions],
  Magiclysm [magiclysm],
  Stats Through Kills [stats_through_kills],
  Stats Through Skills [StatsThroughSkills]
  ]

Additional context

No response