Is this the behavior of a germophobe?

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I do not know the actual term, but feel free to tell me if you know it or feel like looking it up. =D Anyway, I used to be able to drink after people, eat after people, and tolerate people kissing me on the forehead or on the cheek. Now I cannot eat food if it has touched the fork a person was using, or if someone else had bitten off of it. I cannot share drinks (which makes it more expensive to go to the movies), and I start panicking if someone's mouth even gets near me. Oddly, it started within my family, and spread out to not being able to eat or drink after my friends, too. I think it started with the people in my family who smoke, and then went from there. I have noticed that it is only getting worse, to the point where I feel sick while doing dishes and afterwards I wash my hands until I feel like they are clean. When my grandmother tries to kiss me (on the cheek) goodbye, I just can't tolerate the idea of letting her do so, and it makes her sad.. Today, while heating leftover rice, I used a fork that I thought was mine (one would think that the fork I was using would be the only one out there), and I as I was taking a bite to test it, I looked over to see my fork resting on the lid. After two rounds with the mouthwash, and nuking the food for an unneeded five minutes, I have to wonder, am I afraid of germs? Or maybe it is just a trust issue that I have with the rest of the world? I am leaning towards the trust issue, because here and there I can drink from the same glass as my friend is drinking from. I do not really seek to correct this problem, because there seems to be a loophole with it, I just wonder why it may have started in the first place, if not my own reasoning.