Dealing with Work Stress During Busy Days

Any advice for getting through the really busy stressful days at work? My job is pretty chill- I stock produce at a grocery store. My only interaction with customers is when they ask if we have more of a certain item. So this job is way less stressful than others I've had in the past. However, around holidays and weekends, it gets very busy. The crowd, the noise, and the traffic jams in aisles, make me anxious and gives me sensory overload. It was so bad yesterday that I got dizzy and my hands were tingling, I hid in the back room a lot, I thought about quitting, and I had to call in sick today. I dont really want to quit though, because I need the money, its not always this bad, and I dont know of any jobs in my area that would be easier for me. Any advice for those rough days?