Can a cold and stress and anxiety cause all of these things?

I am a 27 year old female! for the past week i have been experiencing symptoms of a panic attacks! I have been to the doctor and they just observed me and said that everything that i am experiencing is psychogenic pain! Well now for two days i have had this feeling of something stuck in my throat and it goes away during sleep and comes back midday, i can swallow and eat just fine, its an annoying and dull ache and i have this pain in my sternum, but that comes and goes too, are these panic attack symptoms, and can concentrating on them day in and day out cause the symptoms to be worse? My doctor told me abou 5-HTP to help with it instead of me being on xanax and drugs like that! Any help with this would be wonderful i am at my wits end and i am tired of it taking ahold of my life 24-7