4. Muscle Weakness
Untreated vitamin B deficiency symptoms can potentially damage your nervous system. When your nerves suffer from even minimal damage, changes in mobility and strength can occur in your muscles. This can affect your balance and coordination, making you prone to clumsiness and falling.
Vitamin B helps the body turn food into energy. When your body doesn’t get enough oxygen and energy, your muscles will begin to feel heavy and mushy. This is probably why those groceries feel heavier than usual or why you can’t seem to carry yourself up those stairs.
Feelings of sluggishness are usually accompanied by fatigue, which often makes it confusing to distinguish. Vitamin B also helps the body fight and prevent infections. If you have a very demanding day-to-day schedule, your body could be beginning to (literally) feel the weight of it all. Simultaneously, your lack of vitamin B could be a contributing factor.