frustrated!

I am frustrated that I do not know why my baby cries. A friend of mine figured out that soda and dairy products caused her son to be very gassy and upset, so she stopped eating/drinking those foods and suddenly her son was no longer fussy. She says he is a perfect baby now. I want a perfect baby. But how do people know what makes them not feel good? When you eat a sandwich with chicken, tomato, lettuce, cheese and ranch dressing how do you know which part of it made them projectile throw up and be fussy all night? I don't know if I am not watching what I eat closely enough or what. And I don't know if I really have a fussy baby or if she is normal and I just don't know it cause I have nothing to compare it to. I feel like she cries for no reason a lot but maybe this is nothing compared to a colicky baby. I am frustrated.
I am also frustrated because I woke up to this.
And just in case you can't tell just how much, look at this.
And it is not stopping. So Sam and I are stagging a protest and staying in bed until the snow stops. We are having a pj party protest! Mother Nature if you are reading this I am not getting out of bed until you bring back Spring!