What are the symptoms of someone with anxiety issues?

Anxiety: Depends on the type of anxiety; generalized anxiety, post traumatic stress, social anxiety, obsessive compulsive disorder, phobic anxiety, etc.

Agree w Dr. Ali: Symptoms will differ depending on what type of anxiety disorder someone has. Here are some basic anxiety symptoms.Feeling nervous or irritable, muscle tension (especially in neck, shoulders ; back), poor quality or minimal sleep, lack of concentration ; easy fatiguability. Lump in throat or butterfly in stomach sensation can occur.