Hello Brenda,
Any number things could be going on. But the bottom line is you are probably experiencing a lot of accumulated stress. This is defined as day to day stress accumulation adding up to health issues of some sort. Stress is the root of 95% of all the dis-ease in the world. So... It would be a good thing for you to find a way to get rid of the accumulation as well as your present day stress.
One very effective way is to practice a simple and easy to learn exercise called Falun Dafa Qigong. It accomplishes both things quit nicely. This website has free videos that you can download and watch on your own. 5 simple exercises that have the potential to completely restore your health in 1 to 3 months... Love and Light... Gravyee