If you have any health issues, your body will let you know. Some of the signs might not be as obvious, which is why it is important to know which health risks cause which signs. One problem that is commonly ignored is the over consumption of diet soda. According to an article from Care2.com, headaches are a major sign that you are drinking too much diet soda. The headaches are triggered by the artificial sweeteners used in these products. The article also states that the best way to avoid these cravings is to drink soda water with a little bit of natural fruit juice and lime.