Alimentum baby

[albany9305]

My 9 month old has been on Alimentum since she was 4 weeks.  Everything was ok until recently when we started trying her on solid foods and weaning her off formula and onto regular milk, which her gastrointerologist said we could.  So when I tried her on the Similac Isomil which is the next step down in formula, she gets gassy and constipated.  She can't eat any baby food with any kind of starch or flower.  Nothing with potatoes, rice, flower, wheat, anything.  Are there any other mommies out there facing this kind of problem and what do you feed your lactose intolerant, soy intolerant, starch intolerant baby?