Felt ill. started with weakness. lost focus. no appitite. then head pressure. now weak. lack energy. sore throat.. been a month now. docs say anxiety?

Medical work up: A medical conditions that can cause anxiety include heart problems, diabetes, thyroid imbalance, anemia, electrolyte imbalances, asthma, drug abuse, alcohol withdrawal, rare tumors, sleep disorders, etc. Anxiety is less likely if started after age 35, no family history, you don't avoid situations due to anxiety and no history of traumatic or triggering events.