it seems as though you may just be worrying. I would think that she would have been exhibiting symptoms a while ago.The other as well. In my opinion, younger boas tend to do this, possibly because they are more tree dwelling than not. Maybe she is just looking for a good perch. I would think also that there would be other symptoms too, wspecially if she has been doing this for a while. I agree with old herper too, if there is a major concern you should move her (and the other with her) into another room for a quarantine. Luckily, IBD is mostly spread through fluids, and is not overly airborne. Keep your hands washed always when handeling various animals. No worries yet...keep an eye on them and keep us posted. 
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1.0 ball python- Azazel
1.0 columbian boa- Brooklyn
1.0 JCP-Milton
1.0 red blood python-Hiss
1.0 peach phase thayeri-Sancho
0.1 creamsicle corn- Pandora
1.1 hognose- Pricilla and Odd
0.1 russian tortoise- Manja
0.1.1 leos- Boji and Kodama
0.1 beardie- Indie
1.0 BTS- Griffon
0.1 Iggy- Sunny
0.1 pacific parrolet- Mishka
1.1 cats- Cairo and Oberon
1.4 ratties Rizzo, Bree, Blitzkreig, Raisin, and the Runt (R.I.P. Willard.
)