This doesn't sound good.... Fever? In bed for 2 months? Severe chest pain? I would take him to the hospital stat and have him admitted. That is where you see the specialists on site and get all the tests immediately. If it has to do with the heart, patients are seen immediately. Please write us back to say that you did take him to the hospital and that he is being treated. Often guys (is he an adult?) are reluctant to complain and seem like they are whining and so then their symptoms are not taken seriously.
I read that the more people are with a patient when visiting a doctor, the more seriously the doctor takes the condition. Keep that in mind. Help is right around the corner.