I tried narrowing my bars and it seems as though im less stable in the wind, is this normal or just a learning curve?
I am going to say yes, you have narrowed your base of support by narrowing the distance between your arms. Kind of like it is easier to push someone over if they are standing with their feet together vs standing with your feet at shoulder width. If your center of gravity gets outside of your base of support, you go down.
But if your balance is good you may adapt, just like riding a skateboard isn’t stable but you can learn to keep your center of gravity within the bounds and stay upright if your balance is good.