My feet & ankles are swollen, hot and reddish color. I have high blood pressure, lupus, asthma, back problems, diabetic, fibromyalgia, and Padgett disease, an enlarged heart, and enlarged thymus gland. I've been waking up in the middle of the night with leg cramps, tremors, shortness of breath and my hair & night gown soaked from sweat. Please advise what could be happening? My doctor sent me to the hospital. They did blood test, x rays, cat scan with injected dye, Doppler tests.