5. Low Iron
Having a low iron count is similar to having low levels of Vitamin B. The symptoms of each deficiency are fairly similar. This is a reason why it is important to make sure that you have blood work done by your doctor to determine your blood counts and what your body may be missing. In addition to having to little iron, you may also have too much.
This can be just as dangerous. Keeping your iron in check can go a long way to making you feel better. Exhaustion is one of the top symptoms of a low iron count. Also, people who have low iron are more likely to develop canker sores. An iron supplement may be necessary to boost your iron levels. This should also help decrease the number of canker sores that you get if low iron is the cause.