PF drawbacks/traits that decrease max HP

[Tsunamiatunzen1]

I'm trying to make a character that relies on speed and dexterity but does not take a hit well. Are there any Drawbacks or Traits in Pathfinder that decrease HP?

This is also to help me with my Dvati rework homebrew.

[TheFamilarRaven]

There are no drawbacks that decrease max HP. Just sacrifice your constitution score in favor of higher dexterity.

There is, however, the Sheltered trait that forces the Shaken condition upon you whenever you are below half of your max HP. Also Tainted Spirit forces you to make a fortitude save after each combat or become fatigued.

[Starbuck_II]

I'm trying to make a character that relies on speed and dexterity but does not take a hit well. Are there any Drawbacks or Traits in Pathfinder that decrease HP?

This is also to help me with my Dvati rework homebrew.

There are campaign traits that might, but few DMs let you take them outside of their campaign.