try eating several small meals instead of three large ones whenever you can...Avoid foods that irritate your stomach, especially those that are spicy, acidic, fried or fatty... avoid coffee,tea etc... Avoid stress,consider calming activities, such as meditation, yoga etc...sleep with head raised position and have dinner at least 2 hours before sleep...Drink plenty of water,eat soft foods like cooked cereal, mashed potatoes, soft fruits, yogurt and soft-cooked eggs...give adequate rest to your body..Avoid spicy foods or acidic foods. Gargle with warm salt water. gargling several times a day can help relieve throat pain....there are many reasons for headache it may be due to increased blood pressures, migraine, cluster headache, refractive errors, meningitis,sinusitis, reffered pain from somewhere else... So detailed history and examination with relevant investigations is necessary... Kindly consult nearest neuro physician they will do the needful.