Is it normal to get this stressed out about packing?

I have a really hard time packing a suitcase. I get uncomfortable just thinking about it. I've had to pack and unpack a lot recently because of college and some of the experiences I've had make me think that I have a problem or something. I remember one of the worst times was when my suitcase was too small to fit everything, and no matter how I arranged it, it just would not fit. I got so panicky about it, I didn't consider any alternative options because I just felt like everything had to fit in this one suitcase. I didn't want to take a bigger one or take more bags because I was going on the train and I thought it would be way too hard to manage along with my purse which was completely filled too. Thinking about all of this made me so stressed out that I started crying. It probably sounds ridiculous, but I was under THAT much stress...about packing a suitcase. Another time had to do with unpacking and moving everything into my dorm. I just got so overwhelmed about everything that I couldn't handle it. I was a complete bitch to everyone around me until I felt like I had everything organized and in its place. My mom tells me to try not to get stressed out about things like this but I really can't help it. The only thing that helps reduce stress is for me to write lists. I write endless amounts of lists all the time. It's basically the only way I keep myself together. Well I feel like I've written enough. Input?