I Recently Got Braces And Because Of Them My Teeth

I recently got braces and because of them my teeth do not come completely together. I am not able to chew my food completely. I have had severe stomach aches since then. When I have a bowel movement I get relief but as soon as I eat something my stomach hurts again. I am thinking it is due to my body being unable to break down the food that is not chewed well. I know that i am going to have to change my diet to softer foods until I am able to chew my food better but am wondering if it would be beneficial for me to do a detox first.