How Can Constant Fatigue Be Treated?

I ve been having constant fatigue even with caffeine and plenty of sleep, waking up tired. I eat healthy and exercise but lately I ve been getting skin rashes all over my upper body, like hives, my calves tingle, my right arm tingles and sometimes goes numb, I have a large lump in my right arm pit that I ve had checked by my Dr before, the swelling hasn t gone down, if anything its only getting more painful. I have a medical history of rectal polyps, hypertension in all 3 pregnancies, my mom has hypothyroidism. My Dr tested me for diabetes but I m not diabetic. I have had kidney stones while pregnant and I do have gal stones. Is it possible that my Dr is missing something? I ve looked up several things it could be: thyroid issues, lyme disease, lupus, cervical cancer (I ve had sharp acute pain where my right ovaries are in the last 30 days) and longer than normal periods. I m at a loss really, I go and see a new Dr on Monday.