Hun, if you do decide to cut out dairy, you also need to cut out all foods that contain milk solids and you'd be surprised how many there are (even some potato chip flavours!). The best way to do it is an elimination diet under the supervision of a dietician who specialises in food allergies and sensitivities. This way you can avoid all the foods you need to, and still maintain a balanced diet. The elimination diet also consists of adding things back in too, once everything is out of your system so that you can identify exactly what the problem is and not restrict your diet any more than necessary - eg there are two proteins in cows' milk and many people are only allergic to one, so foods like cheese or A2 milk can be ok for some people with cows' milk issues. This is a lengthy process so you might like to follow Marcellus' suggestion and give it another couple of weeks first just in case it just from the abs.