My husband military file states that he suffered from pes planus left foot with swelling and numbness , gerd,hiatal hernia with inflammation and scarring of stomach, broken left ankle. My husband has been seeing a doctor for his gerd, and hiatal hernia as well as medication since for years . Will my husband need a nexus letter or will the doctors notes be sufficient. Are nexus letters necessary for all claims????? What should the nexus letters state.