Potassium is an important mineral that helps your nerves, heart and muscles work the way they're supposed to. When your potassium levels are low, you can develop numbness or pins-and-needles sensations, and you might also experience muscle weakness, constipation and heart rhythm abnormalities.
One possible reason for feeling tired, anxious, and weak is having low levels of iron, vitamin D, or B12. Many experts believe that a significant percentage of the U.S. population is deficient in vitamin D. Having low levels of vitamin D can cause muscle weakness and pain.
Muscle weakness due to vitamin D deficiency is predominantly of the proximal muscle groups and is manifested by a feeling of heaviness in the legs, tiring easily, and difficulty in mounting stairs and rising from a chair; the deficiency is reversible with supplementation (15–18).
Muscle weakness is commonly due to lack of exercise, ageing, muscle injury or pregnancy. It can also occur with long-term conditions such as diabetes or heart disease. There are many other possible causes, which include stroke, multiple sclerosis, depression, fibromyalgia and chronic fatigue syndrome (ME).
Vitamin B12
When your body does not receive enough vitamin B12 you may feel fatigued and tired all the time. It can also lead to weakness. Vitamin B12 deficiency affects the production of red blood cells which affect the transportation of oxygen throughout the body. This further contributes to tiredness.
extreme tiredness (fatigue) lack of energy (lethargy) breathlessness. feeling faint.
A sudden weakness in the legs, arms, or face can also be a sign of a stroke. This occurs when the blood supply to your brain is cut off because of a blockage or a blood vessel in the brain bursts. Usually, a stroke will have other noticeable symptoms like difficulty speaking, confusion, headache, or face droop.
one arm or leg (monoplegia) one side of the body (hemiplegia) both legs (paraplegia) both arms and legs (tetraplegia or quadriplegia)
As a result, people with heart failure often feel weak (especially in their arms and legs), tired and have difficulty performing ordinary activities such as walking, climbing stairs or carrying groceries.
Leg weakness can result from sciatica, spine conditions, neuromuscular disease, and certain medications. Sudden leg weakness may be a sign of stroke. Call 911 for any sudden muscle weakness, particularly if it occurs with facial drooping, severe headache, or slurred speech.
What causes weakness in legs? Leg weakness can be due to systemic disease, inflammatory conditions, or medication side effects. These causes can affect the nerves, spine, or brain, leading to leg weakness.
Vitamin deficiency can cause a range of symptoms such as fatigue, irritability, and changes to your skin and hair. The specific symptoms depend on which vitamin(s) are at low levels, as each one plays a different role in your body.
The weakness can make your legs feel heavy, as if they are being weighed down by something. They may also ache and hurt. Some people with MS describe it as like having bags of sand attached to their legs. This muscle weakness combined with MS fatigue can be upsetting.
Weakness in your leg(s) may occur from problems in the nerves and/or muscles in your lower body and is usually treatable. Rarely, the underlying cause may be a serious medical condition requiring immediate medical attention. A feeling of sudden weakness in the legs may be due to nerve and/or muscle dysfunction.
Peripheral neuropathy
It can be caused by injury, infection, and a number of conditions, including diabetes (diabetic neuropathy) and hypothyroidism. Symptoms usually start with numbness or tingling in the hands and feet, but can spread to other parts of your body. Other symptoms include: weakness.
If you suddenly feel weak, shaky, or lightheaded—or if you even faint—you could be experiencing hypoglycemia. A headache that comes on quickly, weakness or tremor in your arms or legs, and a slight trembling of your body are also signs that your blood sugar is too low.
Another common symptom of chronic anxiety is weakness in the muscles, most commonly experienced in the legs and sometimes the arms. During the fight or flight response, the body is preparing to take action against danger.
If you lead an active lifestyle, or you just need an energy boost, both Vitamin B12 and Iron can help reduce feelings of tiredness and fatigue.
Vitamin B12 along with B6 are best for energy. Almost every cell in the body uses B12. Besides helping form red blood cells, B12 converts fat and protein to energy. A B12 deficiency causes tiredness and anemia.