Last year I seemed to think there was something wrong with me all the time, I had aches and pains on aches and pains, but the doctor could find nothing wrong, I think perhaps it was mainly stress, as the other half was having all sorts of tests. After the doctor examined my chest, and could find nothing wrong, I said to him "I am really quite healthy" and he said "Yes, you are, but if you are worried we should sort it out" The next week I was in hospital! Nothing serious just a broken hip, but all the other aches and pains vanished, and they took me off my blood pressure tablets!
Seriously I do think if you are anxious about anything it reacts on your health, and perhaps there is something else going on in your life?