google "adrenal fatigue"...the adrenal glands regulate our blood pressure, blood sugar, cortisol & adrenaline levels and over 50 hormones...they are a big deal but are over looked by most doctors as the root cause of anxiety.

changing your diet to a more plant based diet will help you also get tested for vitamin deficiency, google "vitamin deficiency anxiety" usually the person are deficiency in lots of vitamins/minerals but mainly in all the B's plus magnesium.

symptom list for adrenal fatigue is long but one of the main issues is anxiety.