Hello Dannydse, Thank you for visiting Healthcaremagic.com. While I am not able to diagnose a specific problem based on the information you have provided, I can give you some advice regarding your fatigue and other symptoms. Vitamin B-12, or Cobalamin, is the largest and most complex vitamin currently known to man. A slight deficiency of vitamin B-12 can lead to anemia, fatigue, mania, and depression. Vitamin B-12 can only be manufactured by bacteria and can only be found naturally in animal products, however, synthetic forms are widely available and added to many foods like cereals. Vitamin B-12 can be consumed in large doses because excess is excreted by the body or stored in the liver for use when supplies are scarce. Stores of B-12 can last for up to a year. Here is a list of the top ten vitamin b12 rich foods. Known for their omega 3 fats and for being a high protein food, fish are also a good source of vitamin B12. Mackerel provides the most vitamin B-12 with 19μg per 100g serving (317% RDA), followed by Herring (312% RDA), Salmon (302%), Tuna (181%), Cod (167%), Sardines (149%), Trout (130%), and Bluefish (104%). In addition to being a vitamin B12 rich food, beef is also a good source of protein, zinc, and heme-iron. The amount of vitamin B-12 in beef depends on the cut, lean fat-trimmed chuck contains the most vitamin B12 with 6.18μg (103% RDA) per 100g serving, 11.49μg (103% RDA) in a chuck steak, and 5.25μg (88% RDA) in a 3 ounce serving. Chuck is followed by sirloin (62% RDA), rib-eye (60% RDA), and ribs (58% RDA). Despite being a high cholesterol food, cheese is a good source of calcium, protein, and Riboflavin (Vitamin B2). The amount of vitamin B12 in cheese depends on type and variety, Swiss cheese provides the most with 3.34μg (56% RDA) per 100g serving, followed by Gjetost (40% RDA), Mozzarella(39% RDA), Parmesan (38% RDA), Tilsit (35% RDA), and Feta (28% RDA). When it comes to chicken eggs the raw yellow has most of the vitamin B-12 with 1.95μg per 100g serving (33%), however, this equates to 0.33μg per yolk or just 6% of the RDA. The eggs of other animals are higher with a goose egg providing 7.34μg (122% RDA) of vitamin B-12 per 100g serving, and a duck egg providing 3.78μg (63% RDA). Additionally, these foods contain B12 as well: Clams, Oysters, Mussels, Liver Pâté, Caviar, Octopus, Mackerel, Herring, Crab, Lobster, Organic Grass Fed Chuck Roast Beef, Lamb Shoulder Chops, Swiss Cheese, Gjetost, Mozzarella, Parmesan, Fresh Eggs, Vitamin B12 Fortified Cereal, Liverwurst, Vitamin B12 Fortified Energy Bars, Fois Gras, New England Clam Chowder, Manhattan Clam Chowder, Luncheon Meat, Hard Salami, Whey Powder, Yogurt, Milk, Marmite (Yeast Extract Spread), Lean Cured Ham, Unsweetened Enriched Soy Milk Some of these suggestions for including B12 rich foods are not the most healthy (i.e. lunch meats), they are included. As always, a balanced diet will help in maintaining a healthy body. Be well, Dr. Kimberly