Is being afraid of ketchup strange?

Ok, so ever since I was four years old, I have been very scared of ketchup. It all started when those morons at Mcdonald's screwed up my plain hamburger and put ketchup on it, and since then I have beem terrified of it. Not only won't I not eat anything with it, but if someone has ketchup with their food next to me, then I have to move away. Also, if someone tries putting ketchup near me, I freak out. Is this strange?