<s>[INST] When I get extremely upset, which is not often, I experience a tingling sensation on the back of my scull. Recently it happened but this time I felt it all over my whole body. Its not painful it just feels like the sensation you might feel if your foot falls asleep. It goes away when I calm down. What could be causing this? Am I having a panic or anxiety attack? Should I see my doctor and if so will he be able to find out whats wrong if it is in fact a physiological condition? I have an iron defficiency, but im otherwise in good health. [/INST] Dear thank you for sharing with us your health problem.Iron deficiency can't explain the symptoms you are experiencing.My recomandation is to explore thyroid function (T3,T4,TSH) if there come normal than you are experiencing a panic disorder.You should avoid caffein drinks as well as energic drinks and use camomile tea.If problem persist than you should consult your doctor to start medication.Anyway you have nothing to worry, it's fully treatable.Wish you all the best, don't hesitate to contact for further questions.Dr Eris </s>