First off, I'm not an expert, very, very far from it, but I do have a wheezy, whistling boa!
She was a rescue, last christmas, she'd been out in a cold store room (lost, apparently!
![Mad](http://www.ssnakess.com/forums/images/smilies/mad.gif)
) for two weeks, AND had an injury on her nose. She couldn't breath very well at all.
We thought RI instantly, and took her to the vet for a full check-up, and a course of antibiotics.
To cut a long story short, she didn't seem to really develop any RI (thank goodness), her nose injury has healed, but she's the noisiest breather I ever heard! Not so much when resting, but as soon as she moves, or we move her, it's like bellows!
Does your BCI breath badly mostly on the in breath, the out breath or both? I don't know if it's significant, but ours makes the noise when breathing out only.
I thought maybe someone else on the forum might be able to shed some light on how this might relate to RI...
My advice, both for the snake and for your peace of mind is to go for a vet check, if you can manage it. Better safe than sorry.
Good luck,
Brig.