Hello, My Name Is Jolene. I've Been Eating Different Since

Hello, my name is Jolene.

I've been eating different since I move with my Boyfriend he is vegetarian. And I started to eat like him since I also like vegetables but since then making Indian food my stomach I've been having so much pain and gas that now days I can't even sleep. And I have and get so much pain I go to the bathroom and I just release gas. What can I do?