get a blood test for fibromialgia the doctor will know what that is. Also, many children suffer from arthritis so get blood-work for roamatory arthritis. Sorry, can't spell these right but the doctor will know what your talking about. Although neither disease is curable, there is treatment to lessen the pain.
I am sorry that you have been in pain for so long! What is your diet like? Are you eating too many TV dinners? Mac and cheese? Processed foods contain MSG which after time can not only make one ill, some get heavy.
Are you drinking diet sodas? Aspartame is a rat poison. it can cause symptoms of M.S. and other diseases. If you crave a sweet drink, try lemonade or limeade instead. The fizzy stuff is simply not good for us.
Do you take probiotics? If you don't have enough friendly flora or bacteria in your stomach, you can suffer from many pains and symptoms; including GERD, fog brain, and aches and pains.
Glad to hear you are taking Vit. D supplements. However, if you are not taking Magnesium and Calcium, you may not be utilizing the Vit. D correctly. The Magnesium and Calcium should not be taken at the same time so that you can absorb them better.
Have you been tested for Lyme disease? Many people have been bitten by a tick and don't remember it, as it didn't hurt - just left a red bulls eye, which went away by itself later.
I hope this information was helpful. Wishing you the best.