Hi..welcome to healthcare magic...first of all don t panic...everything will be fine...if your problem is progressive and persistent,you surely need to be evaluated...barium swallow is an important non invasive painless harmless investigation that you must get it done...if you are not having any lymph node enlargement in neck or you don t have any change in voice no need to worry but you need to get your food passage evaluated..barium swallow is the ideal option as it will rule out any major problem .if it turns out normal,u can further undergo an upper GI endoscopy ....also get your blood checked for anaemia and occult blood in stool.and sugar..for time being you can start with syp mucaine gel,pantoprozole and iron and vitamin supplementation..take more of semisolids and liquid food with great ease...if it is simple Castro esophageal reflux or plummer Vinson syndrome it will get treated....