I get nervous in the morning?

A month ago I drove for the first time to college by myself. This was the first time I drove by myself for more than twenty minutes. I was nervous about college and I had to go to the bathroom really badly. A few days after that I had a bit of a nervous attack and since then I have been getting nervous for the fear of being more nervous. This seems to be at it's worst in the morning and even causes me to feel nausious to the point that sometimes I won't eat breakfast. These nerves also cause to have the urge to go poop which kinda bothers me. This may sound weird but I used to poop every few days and hard now it's everyday and a bit soft or mushy, Is this normal? I'm worried that I have an anxiety disorder after I read about it on the internet. Everyone has told me I don't have an anxiety disorder but I'm still worried. My mom tells me to stop thinking about getting nervous in the morning but I don't know how to stop thinking about it I all of a sudden get nervous. Do I have an anxiety disorder or am I blowing this way out of proportion and how do I stop getting nervous in the morning?