Picture this: You hit the gym ready and pumped for your workout. Only you already feel exhausted a few minutes into it. If you are struggling to exercise these days, there may be an underlying issue. Some experts say it may be a symptom of a medical condition. If fatigue has been creeping up on you more often while you workout it may mean you need to get it checked and seek professional advice. Here are some of the reasons you are feeling unusually tired during your workout.

Low-carb diets are all the rage right now. But if you are someone who is extremely active, you need to load up on carbs to fuel your energy."The human body's primary energy source during exercise is glucose, a simple sugar derived from carbohydrates," Cynthia Li, MD, a board-certified internist, told a news portal. If you are worried about consuming too many carbs, seek counsel from a nutritionist. An expert will help to guide you on how much you require depending on how much you workout.

Are you drinking enough water? It may be the reason you feel so tired while you are trying to do physical activity. Your heart has to work harder when there's not enough water in the system.Because you release water through sweat during exercise, it can cause you to lose electrolytes like sodium and potassium. Make sure you are consuming enough water throughout the day so you are ready to hit your workout with ease.

If you are eating right and sleeping well and still can't get enough energy to make it through your workout, it may be a thyroid condition. "The thyroid hormones play a primary role in regulating metabolism, the process by which the body converts food into usable energy for our cells," Cynthia Li, MD, a board-certified internist, told a news portal. She suggests adding minerals to your diet, as well as zinc, selenium and iron.

Even though sleep is the thing we need to perform well when we are awake, it's something most of us can't seem to catch enough of. According to the Centers for Disease Control and Prevention (CDC), many people in the US are prescribed medication to get through the night. You need to asses if you are getting enough sleep as it may be the reason it's getting in the way of your fitness goals. "When we don't get adequate sleep, our bodies release more cortisol and adrenaline — stress hormones to keep us going," Cynthia Li, MD, a board-certified internist, told a news portal. She further explained, "this can create a sustained high-stress state in the body, which dampens the body's capacity to repair itself."