my dad died of osophagus cancer, he had the similar syptom when eating something dry. but he was in his 70s when he died, if you really have problem swollowing things, please go to see the doctor soon cos early operation will save ur life...The process lasts for 16 months if there is no medical intervention done to patient with the problem. by process i meant from the first sign of the syptom to death. heart problem is also threatening ur life, So please go to see the doctor soon