Can the physical symptoms of anxiety present themselves without the presence of anxious thoughts and feelings?

Anxiety: Possible, if you rule out medical causes such as thyroid abnormality, anemia, effect of medications, etc.

Psychosomatic: Good question. Can you experience the physical symptoms associated with anxiety without having the subjective conscious experience of anxiety? This is not the case with Panic Disorder or Generalized Anxiety. I suppose it is possible with some psychosomatic conditions, for the person to experience a symbolic physical manifestation of their subconscious intrapsychic conflict. Ask a psychoanalyst:)

That can happen: You might not be aware of anxious mood but still experience the physical manifestations of anxiety. Take care.

We can be anxious: and not be aware of it like when we get our blood pressure measured and it is high although we don't feel anxious. Our "Fight flight" response is working. Take a look at www.relaxationresponse.org for a little technique to evoke the Relaxation Response. Peace and good health.