Everyone feels tired sometimes. Whether it’s lack of sleep, a busy schedule, stress… all of those can take their toll and leave you feeling exhausted.
But feeling exhausted for long periods of time – even when you’re getting enough sleep – is cause for more concern.
Talk to your doctor if you’ve been feeling fatigue or exhaustion that just won’t go away, no matter how much rest and recuperation you get.
Here are some of the biggest medical reasons behind chronic fatigue that doesn’t go away:
The Biggest Medical Reasons For Feeling Tired
1. Chronic Fatigue Syndrome
Chronic fatigue syndrome is a condition that’s not very well understood yet that causes chronic exhaustion that lasts for at least 6 months.
There’s no known cause at this point, but it usually presents with symptoms like muscle and joint pain, headache, and sore throat.
In order to diagnose you with chronic fatigue syndrome, your doctor will need to rule out many other conditions that could be causing your fatigue, as there is no test yet that can diagnose chronic fatigue syndrome.
Depression can take its toll on people in many different ways – and leaving them feeling exhausted and without energy is definitely one of them.
Depression can sap your energy and ruin your sleep cycle. It can make you want to sleep until 5pm and then not be able to fall asleep at night – and it can ruin the sleep that you do get.
If you suspect you might have depression, talk to your doctor or a mental health professional about diagnosis and getting treatment.
Also known as an underactive thyroid, this condition means that your hormones are out of balance in your body – leading you to feel tired and exhausted even after getting enough sleep.
Other symptoms include muscle aches and weight gain – and women are more likely to get hypothyroidism than men.
Talk to your doctor – there is a simple blood test that can confirm or rule out hypothyroidism as the cause of exhaustion.
Anemia is a condition that’s caused by a lack of iron in your diet. It’s extremely common – especially in women and vegetarians.
An iron deficiency causes symptoms like exhaustion and tiredness even after seemingly not a lot of exertion, and feeling like your muscles and limbs are way heavier than they should be.
5. Sleep Apnea
If you have sleep apnea, your airway narrows or closes while you sleep – messing up your breathing pattern and jerking you awake, up to dozens and dozens of times per night.
Most people with sleep apnea don’t know that they have it – since when you wake up because of it you almost instantly fall back asleep. If you’re feeling exhausted even after full nights of sleep, it could be because of sleep apnea.
Sleep apnea is most common in people who snore loudly during the night, so talk to your doctor if you suspect you’re suffering from sleep apnea.
6. Undiagnosed uti
When your body is fighting off an infection, it takes an enormous amount of energy to kill off the bacteria causing the infection and get you healthy again.
All that energy has to come from somewhere – which can lead people to feel abnormally drained or exhausted. If you’re experiencing pain during urination, talk to your doctor about whether you might have a uti.
7. Cardiovascular Disease
Heart disease can absolutely cause symptoms of exhaustion and tiredness. If your cardiovascular system is in trouble, it’s harder for your heart to pump the oxygenated blood to the places your body needs it.
That means that you’ll feel fatigued way more easily – even from things that you used to be able to do normally without exhaustion. Cardiovascular disease is very serious, so talk to your doctor if you suspect you might be suffering from it.
Diabetes is a condition that can cause extreme fatigue and tiredness. One of the main symptoms of diabetes is fatigue – along with frequent urination, weight loss, and abnormal thirst.
You can check for diabetes with a blood test, so talk to your doctor if you suspect you might be suffering from diabetes.
9. Celiac Disease
Celiac disease is where your body is unable to tolerate gluten – which is found in all sorts of starchy products like cereals and bread.
When you have celiac disease, your body really doesn’t like gluten – and it can cause symptoms like exhaustion and fatigue if you eat it.
Most people who have celiac disease don’t know it – so talk to your doctor about being tested for having celiac disease, especially if you’re suffering from other symptoms like weight loss, diarrhea, and anemia.
more: How Tired Is Too Tired?
Anxiety negatively affects your body the same way that stress does. It’s something everyone experiences – but some people suffer from anxiety disorders where they experience far more frequent and intense anxiety than normal.
Those frequent and intense feelings of anxiety can wreak havoc on a body – leaving you feeling exhausted, fatigued, and run down.
Mononucleosis is caused by the Epstein-Barr virus. Its symptoms include sore throat, swollen glands, fever, and fatigue.
While the physical symptoms of mononucleosis fade within 4 to 6 weeks, the fatigue can last longer, even for months.
12. Restless Leg Syndrome
Many people suffer from restless leg syndrome – which leads to jittering, uncomfortable sensations running up and down your legs during the night when you’re trying to fall asleep.
Those symptoms often prevent people from falling asleep, leading to poor sleep and fatigue during the day. Talk to your doctor if you suspect you’re suffering from restless leg syndrome.
The Top Medical Reasons For Feeling Tired
- Chronic fatigue syndrome
- Sleep apnea
- Undiagnosed uti
- Cardiovascular disease
- Celiac disease
- Restless leg syndrome