Back to square one

2 wks ago, my wife broke out with hives/rash around her stomach area.  After searching on internet, it looked like SHINGLES, so I took her to Urgent Care.  They did lab test, and next day, we received a call from UC informing us that her Amylase level and Lipase level was way high,  Lipase was 623 and Mmylase was 142.  UC wanted her to admit to ER right away for further testing.  This may been a cause of her feeling discomfort to her stomach, aches in the back, and right shoulder.

1st day-Ultra sound and CT Scan:  Negative...everything came back okay.  Doctor said it could be gallbladder.
2nd day-MRI - found small 4mm gallstone in gallbladder, but liver and pancreas seemed to be okay.

Doctor suggested removing gallbladder to prevent from another build up in gallstone.  Gave my wife 1week rest to see if she would feel better.  But this couple of days, she started to vomit, and when we went to see the specialist, he wanted to do GI because he thought things would get better.

Blood test showed her Amylase and Lipase level still very high.  We are unsure what it will be.
I am also wondering if this rash/hives around stomach area is causing by some internal thing.  Have anyone seen such a thing?

We hope to get better answer by going to GI next week.