Hi there, I hope you are well. Ideally in hypothyroidism your metabolism is known to slow down. Here's what you can do. - Take your thyroid medications in the morning on empty stomach, and wait for an hour before consuming any other food item. - Have a healthy and wholesome breakfast with fibre, good fats, and protein. - Avoid skipping meals. - Try sleeping and waking up at the same time to reduce fatigue. - Eat a healthy lunch, and avoid consuming outside foods or packaged foods. - Get some exercise, keep yourself active throughout the day. - Take a quick nap in the afternoon after your meal, for better digestion and to ward off tiredness. - Drink water, as dehydration can lead tiredness. - Eat a light dinner, try to have a protein based dinner with lean meat, eggs, cottage cheese, and yogurt with some sauteed veggies. - Be careful about your alcohol and caffeine intake. - Meditate to reduce stress, and sleep well. I hope this helps! Take care :)