Hello
Welcome to HealthcareMagic. You mention about feeling of discomfort at the time of taking meal in the form of nausea and choking? or sometime feeling of obstruction.With these problems, I think you need to be checking your cardiac(heart) as well as gastrointestinal system and neurological status.A feeling of discomfort during or after a meal can be subtle symptoms related to heart.For this, I would suggest you to undergo ECG(electrocardiogram), an Echocardiography/ a stress Echo/ TMT, which would be adviced by a cardiologist after he sees you. Then also related to gastrointestinal system, it could be problems of oesophagus( food pipe) like achalasia, a diverticulum, diffuse oesophageal spasm, a tumour like growth, peptic stricture etc.For these, a barium swallow,gastrooesophageal endoscopy, pH monitoring( for gastro eosophageal reflux disease), Manometry It could be related to some neurological problem like a stroke, some myopathy( problem of muscle) etc. So all these has to be adviced by respective specialists only after evaluating you thoroughly. Hope you have visited a physician by now, if not then please He is the first person to guide you how to proceed. Hope I could answer your query. Take care.