As someone who's gone through anxiety myself, I'm here to agree with you that it really, really sucks. There are a lot of reasons people struggle with anxiety and panic attacks, and my job as a functional medicine practitioner is to find out what they are so we can work together to reverse, improve, or manage them.
This comprehensive (if I do say so myself) list is a mixture of the most common physiological anxiety triggers and aggravators. Mental health issues—any health issue, for that matter—are often times multifactorial; each piece of the anxiety puzzle is unique. And because your body is brilliantly interconnected, so are the factors on this list.