They often carry small objects linked to their victim’s anxieties. Clocks are a favourite. 

The Bipolar monster is always at odds with itself, its two head constantly bickering with each other in a language of gibberish. The blue head is always depressed and easily irritable and the orange head it always on a high and in a frenzy.
Other monsters tend to stay away from Bipolar due to the constant noise it created with its arguing. 

The depression monsters floats around endlessly, always covering his eyes becuase of his depressed state. Because of this he always bumps into things causing more distress to himself each time.
Hugs are known to relieve this poor creature's levels of depression and lift its mood slightly.

The Schizophrenia monster is a vile and disgusting creature that manipulates its victims into doing its bidding. It uses hallucinogenic gases secreted form the pores on his underbelly to control and influence others to do what he wants.
They are often accompanied by other monsters such as Paranoia, with Schizophrenia taking up an authoritative role much like a circus ringleader.

Paranoia is similar in its biology to Anxiety and they can often be found together. Paranoia uses its tall ears like a radar, scanning the area but due to the tight curled up nature of their ears the sounds often get confused and muffled meaning Paranoia almost often hears the wrong thing. They are quick to judge and quick to point the finger of blame.
They sometimes work as minions for Schizophrenia and seek out victims for it

Dissociative Identity disorder (also known as Multiple Personality disorder) can be characterized by its ability to alter its form into whatever it likes. As well as changing itself physically, the creature also takes on different personas of itself each with their own personality.
Occasionally, the monster can become confused about its original identity and multiple personas can play out in the same from, complete with a mish-mash anatomy. No ‘DID’ monster looks or acts the same as another.

The borderline personality monster is one of the most delicate but perhaps most sinister of monsters. The gather is small swarms around their victims and use pheromones to heighten the emotions of said victim, before feeding off on the emotion itself. They feed upon any emotion but tend to favor feelings of depression.

The monster is made almost completely of a clear ice, rendering it invisible. Only the maple shaped leaf on its tail is visible to the naked eye and looks like a falling leaf. At times, when the monster gorges itself too much on any given emotion its can overwhelm them and they simply shatter like glass.

The Social Anxiety monster spends most of it life underground or in secluded sheltered areas, away from human contact. Because of this their skin appears pale and anemic apart from hard plates that serve as as a means of defense.

They will shy away from all contact, even from a fellow monster making them elusive and rarely seen. They are from the same biological family as Anxiety and Paranoia but due to their extreme way of life they have evolved to look quite different.

The Avoidant Personality monster is similar to Social Anxiety but much smaller in size and prefers to live above ground. They spend most of their time hiding in trees, using their leaf-like wings to camouflage and hide from anyone or anything that is around them. 
The have an unsightly appearance to ward off contact with other monsters but are in fact gentle and kind creatures, having a delicate beauty about them that even the creature is mostly unaware of. They never get the chance to show off this side of their character because they are so shy and withdrawn.