Do peri's lose concentration?

[jezer]

My peri mysteriously looses mana, not quite sure why?

of rep
Your peri brushes you with her wing.
You feel better!
Fleta the peri reports 232/232 hp. Need: 0. 58/120 ma. 306/306 mv.

<421hp 199ma 285mv +9al -1.7ac +6dam +52mr 273353064xp>
of rep
Your flurry of blows subsides.

<430hp 213ma 289mv +9al -1.7ac +6dam +52mr 273353064xp>
Fleta the peri reports 232/232 hp. Need: 0. 38/120 ma. 306/306 mv.

<430hp 213ma 289mv +9al -1.7ac +6dam +52mr 273353064xp>
of rep
Fleta the peri reports 232/232 hp. Need: 0. 18/120 ma. 306/306 mv.

<445hp 234ma 289mv +9al -1.7ac +6dam +52mr 273353064xp>
Your peri brushes you with her wing.
You feel better!

<492hp 242ma 289mv +9al -1.7ac +6dam +52mr 273353064xp>
of rep
Fleta the peri reports 232/232 hp. Need: 0. 6/120 ma. 306/306 mv.