Why is my eye degree increasing fast when I'm not even doing anything?

I play some computer but just 2 hours one day per week and I use some iPhone but not too much and I look at green plants and all that excersise past eye degree: left:300 right:325 now: left:350 right:425

You might have a lazy eye, it's where if you stare for too long one or both of your eyes wander off to the side. I don't know what causes this but I'm positive this is what it is. I'm sure it's nothing to worry about, do a little research on it if you're worried. One of my friends have a lazy eye and he's never complained about it.