I don't mean an anxiety disorder, but an anxious disposition.
I'm an anxious person by nature. I think most people (who don't have any clinical issues and function fine on a day to day level) fall into two personality types in terms of how they cope with stress: depressive or anxious.
My father is an anxious person and I've definitely inherited that from him, as well as the stereotypical behaviour: on-and-off nail biting, face touching, strong desire for routine and order to feel calm, introverted nature and a need for a lot of time alone, overthinking tendencies etc.
I have worked very hard to counteract my anxiety and have pushed myself more than my father has in life. I got a degree, learnt to drive, work in a professional role where I have to speak in front of people and work in stressful situations. I don't take medication for my anxiety but muddle through life with my own coping strategies.
I am careful about what kind of jobs I take (freelance work) and push myself a little at a time at my own pace, rather than flinging myself into the deep end. I try to work on habits like nail biting and check in with my husband if I feel like I'm struggling to cope with anything (I have a tendency to shut down when not coping and go silent). I am fortunate enough that we both earn well so that I don't have to work more than 2 or 3 days a week, and I have shaped my life to work best for me so that I don't become overwhelmed and panic.
Anxiety has shaped my entire life. I'm a very happy and content person with everything I could want in life and friends and family would actually describe me as laid-back, but my nature seems to be fixed like this and (although much improved in recent years) there is always the background hum of anxiety in my brain.
YANBU- For someone with an anxious disposition there's not really much you can do other than find your own coping strategies/self care and just get by
YABU- Get yourself to the GP and get on medication for goodness sake