I’m panicking

My uncle came over and on his way out he took a banana with him to eat. I eat bananas everyday so I was worried about them running our even though we had like 5 more. I felt my heart start pounding and I felt myself starting to panic and get a little dizzy. I felt a sense of loss of control or something all over this banana. I told my older brother (he’s my guardian) what I felt and he said it’s no big deal if we need more bananas we’ll go to the market and get them. Take a deep breath. If you want to talk about it more go to your room and I’ll meet you there in 20 minutes. Why did I get this sense of panic over this banana? I get the same way over bottles of water.