Idk if this is from anxiety or just me but i got a new job as a cashier/greeter and about 3-4 hours into my shift usually when im greeting my stomach feels tight right above my belly button, mys nose and fingers get tingly and i get woozy/lightheaded, i will also start dry heaving then i have to go to the bathroom and sit for a bit but idk if its cause i need to calm my nerves or just because i was standing (btw i have alsways had self doubt and worroed about looking like an idiot and stuff so im pretty sure i have anxiety but idk if this is from that or not