Poor blood circulation, heart issues, or an underactive thyroid might be the cause. On the milder side, eating too much salt can also lead to water retention and swelling. If this happens often, it might be worth checking with a doctor.
7. Canker sores
Painful mouth sores can be triggered by hormonal changes or emotional stress. They may also have a genetic component, making some individuals more prone to them.
Additionally, a deficiency in vitamin B-12 can contribute to their development.
Source: Brightside
