I find it very ironic that Cirno is capable of getting a brain freeze... for various reasons

Hmmm... Daitenshi is... a big fairy... in many ways I see.

then again many characters gotten a bust boost than in canon. (Kaguya and Mokou come to mind)

Bubble1: I'm glad.
Bubble2: You're back to your normal size.

Bubble6: Just because you're an ice fairy doesn't mean you should...

Bubble9: Ah, you feel it too... (migraine)
Bubble10: You feel it too even though your an ice fairy?
Box1: That's new to me

Bubble13: You feel that?!
Bubble14: You also feel those things?! (Going to toilet)

Wait... she has a brainfreeze?

Wait... she has a brain!?!?!

Shadeshark12 said:
Wait... she has a brainfreeze?

Wait... she has a brain!?!?!

She is brainless, so its a skull freeze in this matter

TenguerecheBionico said:
Hmmm... Daitenshi is... a big fairy... in many ways I see.

...Daitenshi...? Don't you mean Daiyousei...?

Shadeshark12 said:
Wait... she has a brain!?!?!

Well that was uncalled for. Cirno isn't really as brainless as the fandom makes her. She's just a kid.

60 year old kid