Lack of hunger. Eating food last week!

I would advise you to have a liquid diet containing of soups and juices at present and slowly increase to solid food as per how you can tolerate it. You may require antacids to help control the gastritis. As for the fever I would advise you to go to the ER and find the underlying cause of the fever. These following steps may help: - Don't skip meals, you may not feel like eating but in such conditions you should have the reduced amount in frequent intervals(i.e. 3 square meals broken down to 5 or 6 as you can tolerate) and slowly increase as you get better. - Reduce/ Avoid spicy,fried, fatty, junk and oily food - Exercise regularly - Increase daily intake of water to 3 liters - Avoid/Stop smoking and drinking if you have the habit - Reduce stress through methods such as yoga/meditation.