Almond milk problem in EBF LO

I cut dairy out of my diet due to it giving my LO gas and tummy aches. Recently I switched to almond milk because I love coffee and cereal and needed a non dairy alternative( I've never liked soy). The 2 days that I've drank or "eaten" almond milk my LO has projectile vomitted/spit up( not 100% sure just know it's scary as hell. He is EBF and I'm just wondering if anyone has had this problem, or knows what it could be(I have previously eaten almonds whole BF and he was ok) I'm at a loss.