I don't blame you one bit! When this happens to me it usually only lasts about a half an hour BUT I don't sit there worrying about it either. If I did that, it most likely would last longer. I just busy myself to take my mind off how I feel.
I'm 64 and nothing has fallen out yet! Besides, you would know that, too. But, anyway, because of your family history, you do need to be on the alert. So, if this keeps happening, get checked out.
I have heart problems in my family so when the heart palpations started, I went to the doctor immediately and he ran me through a battery of tests. All were fine so we know it's fibro causing them. But, it's better to be safe than sorry.
Sherrine