Hi Katey,
Nausea yes, tailbone pain? I don't know...I had chronic galbladder problems (one very large stone blocking the outlet)...my symptoms were pain in my back under my right scapula (should blade), pain in the front under my right ribcage near my liver, occasional shortness of breath or a feeling of not being able to breath deeply on the right side, indigestion or burping and a very bad reaction to eating fatty foods, feeling like I was going to have a heart attack when I was having a galbladder attack,...plus tons of gas...I am guessing that symptoms can vary according to the person, whether the galbaldder has sludge, stones or a large stone and how swollen with bile it is.
I have had chronic tailbone pain (sacrum and coxyx) but they say it has nothing to do with that.
Sharon

You can have obstructive symptoms form gallbladder issues, but they are upper GI, not anywhere near your pouch. Tailbone pain would be related to pouch issues, arthritis, and/or spinal issues.

My severe tailbone pain was related to a presacral abscess. It had been tender ever since the delivery of my nearly 10 pound son, but nothing like the red hot poker feeling of the presacral abscess.

Jan