I feel sick and anxious, but I m not sure if it s because of my period or I have an anxiety problem?

For the past four days I have been on my period, but this is the first time I ve been experiencing some really weird thoughts and feelings. I have emetophobia, a fear of vomiting, and whenever I m feeling anxious my stomach automatically starts feeling a little weird. I ve never thrown up when I feel very anxious because it s all in my head. However, these past few days, I ve been feeling anxious a lot and I have no clue why. Yes, school is coming up and I just got back from a three day vacation in New Hampshire, which does add to the anxiety. I m back home and my stomach feels better then it did the first few days, but it still feels off when I eat large portions. I ve researched this and apparently this is all normal during a period: feeling ill, anxious and changes in appetite. I m still on my period, but I just kind of want reassurance.. I guess. Do you think this is normal for me at this time of the month? How can I relieve this feeling? Thank you for taking the time to read this, it means a lot!