Anyone experiences Alimentum formula causing colic?

C.
We switched LO from gerber good start soy on Thursday to Alimentum and her fussiness and gassiness just appeared yesterday after every feeding. I've been to the ER as we didn't know what the heck was going on and the dr there said "oh it's just colic". But she wasn't colicky before, and she's 13 days old. 
It's such a drastic change in a short time that I'm thinking we need to switch again. Has anyone else had this experience with this formula? What would be a good formula to use has she's expected to have a milk and soy intolerance?