Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain the symptoms of heartburn, burping and spitting white foam along with lump in throat are most probable symptoms of acid reflux also known as Gastro-esophageal reflux disease.. I would suggest you to consult a Gastroenterologist and get evaluated and a thorough clinical evaluation and investigations like upper G.I Endoscopy can help in diagnosis and treatment can be planned accordingly.. In case if acid reflux is confirmed as a cause you can be advised to take antacids before meals, take proton pump inhibitor like Omeprazole or Pantoprazole.. Avoid spicy food and large heavy meals.. You can take small frequent meals and drink plenty of water.. Take more of yoghurt in diet.. You should take short walks after meals.. Loose weight if obese and sleep with head slightly raised and recline in left lateral position Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.