The biggest link between Crohn's and anxiety for me was with meds. I got terribly anxious on prednisone. In the evenings I'd get this abstract sense that something dreadful was going to happen. It stopped when I came off the drug.
Whether I'm normally anxious or not depends on how you're defining anxiety, and whether you include things like depression. I don't think I'm depressed any more than is inevitable for someone in my situation, which doesn't just include being chronically ill but various other factors.
I'm definitely more of a worrier now than I used to be. I think this is because so many bad things have happened to me. I've learnt to expect bad things will happen. I worry a lot about illness or injury striking my family and even my pets. I don't like being in a car. I don't drive, but even as a passenger I think constantly how unsafe driving seems. I worry what will happen if I ever can't get a hold of my medications - what if they stop making them? What if my doctors refuse to prescribe them any more? Being ill gives you lots of things to worry about.
I've heard that most young people believe they are invincible. This is usually said in the context of teenage boys speeding in their cars - they think nothing can harm them. Because I know that my body can and does fail, I don't have this invincibility complex. I assume the worst will happen, to myself and others.
Because my illnesses make me quite incapable and dependent, I worry about how I'd cope if my family weren't around. Having been abused, I don't trust easily, especially doctors who have so much power over you and who put you in such vulnerable positions - e.g. when you're unconcious having surgery.
I don't have panic attacks, and my anxiety is not to the point where it interferes with my life or stops me from doing anything, but it is odd that I never used to think about all these things. I think this comes from being ill and from being abused.
I've never taken a med for anxiety. However I was prescribed amitriptyline for insomnia, which is an antidepressent which is also used to treat anxiety disorders. However, anxiety can also be a side effect in some people. It makes me feel much more calmer, however, sometimes I wonder whether it's contributing to my anxiety. I know that sounds contradictory, but it does seem sometimes that although I'm feeling calm, my thoughts are anxious ones. This is one of the medications I worry about not being able to get a hold of.