Worried that I feel so unwell when I am so fit I am a 40year old woman, I do lots of running, I also eat very healthy, and take vitamins often. For 2 years now I have suffered stomach pains for several months, which I have had them looked at and showed that there was nothing wrong, they seem to have disappear now, however I still getting other symptoms on a regular basis, like my temperature yoyo s up and down, I break up in sweat in the middle of the night at various intervals, I keep getting cold sores, sometimes I have quick heart palpitations, and keep getting colds, I generally feel run down and tired. I have had numerous blood tests all of which shows normal; I have been stressed out as going through a divorce, but apart from the above feel generally happy. I have a full medical in a week’s time just to put my mind to rest but are these just normal signs of stress?