Is it normal that my eyes change color?!

My eyes are originally green. Sometimes they turn yellow and sometimes brown. Yeah I know, yellow eyes? But honestly, I had a picture somewhere and they were literally yellow (it's on my camera, don't feel like putting it on comp. xD) The thing is, I can feel when they're yellow or brown. Usually they would turn yellow when there is low pressure outside, but not always, sometimes they just randomly change color and literally, I can feel when my eyes are yellow, green or brown.

Many people even pointed out to me that my eyes have a specific color they have never seen before. Others say they're "cool", "amazing" or something along those lines. I don't actually like my eyes because imagine someone with yellow eyes - it looks goofy. But anyway. Perhaps it's normal for some people that their eyes change color but is it normal to feel it? xD

Thanks in advance!