I'm constantly exhausted. No energy. Struggle to get going. Tired a lot of the time. I'm going to ask my doc for a blood test. What else can I do? I've been like this for a long time. I don't know if some of it is depression- it's possible. I want to try for one month eating best foods, exercising, sleeping properly and see if it makes a difference. Any other suggestions? I have started taking a berocca every morning.