Am I just paranoid?

Katie
Ok so the other day I was nonstop vomiting for 24 hours, on the first night of it I could not get comfy on my bed whatsoever and had serious back pain going on. At the end I nibbled on a popsicle and drank some cold ginger ale that seemed to work. However I have not gotten sick since that vomiting episode now 2 days ago. Should I be worried?