Hey Shell!
To answer your question, there are many things that people fear. Some people are only afraid of health issues, some people are only afraid of dogs, some people are only afraid of planes, some people are only afraid of going crazy. There are MANY variables when it comes to fear and anxiety / panic. You can become overly afraid of anything. Just because you have one that isn't as common as other people's, doesn't make your fears any less valid. But, it is anxiety / panic all the same. I've been going through this for 12 years and although the majority of my anxiety revolves around health issues, they have changed to many different things as well - including going crazy. But, I can guarantee you that if you were going crazy, you would have no idea! People who officially lost their minds and have gone "crazy" live in their own little world and are unaware that what they are living is not real. Panickers are far too aware of everything going on with them to be classified as crazy.
As far as the OCD goes, there are a few different levels of OCD but to be classified as having OCD, you must have some sort of ritualistic behavior. That is the corner stone of OCD no matter what kind you have. Have you seen the Aviator? Very well done!! Leonardo DiCaprio did a brilliant job at playing someone with OCD! If you haven't seen it and you are curious if you have OCD, watch that movie and compare your behaviors with his. It is a classic case of OCD and is also an extreme example, but at no matter what level a person's OCD is at, the ritualistic patterns have to be there. I had a mild case of OCD as a child. The best way I can explain it is that you absolutely have to do things a certain way or something bad is going to happen. There is a nagging feeling in you gut and your head that makes you HAVE TO do things a certain way for things to literally be ok. This can be overcome with CBT. I got over it by forcing myself to not go along with the patterns that my mind was screaming that I had to do and proving to myself that the world wasn't going to end simply because I didn't do something a certain way. If you are feeling like you may have an OCD, then I strongly suggest you use CBT to get over it. I promise it works! I still have anxiety,