NuvaRing and horse type

Hi! I have started the NuvaRing almost three weeks ago, and I have been feeling sooo tired that I have lost all my interest in everything-except sleep.Also-I have had these weird, charley-horse type cramps in my calfs which swing down and around the arch of my feet. The cramps started exclusively on my right side; but recently I have started feeling them on my left. I would wake up in the morning, get up and I could hardly walk until sometime in the early afternoon. Today, fed up with this crap, I took the damn thing out-and almost immediately the charley horse tightness and pain dropped off. I also knew it would not be long before I would start to gain weight, as I have slacked off my exercise program due to major fatigue. It has been only a day, but I am feeling great,knowing I made the right decision. I have varicose veins in my thigh and calf area-and I fear the blood clots that the ring would predispose me to. I don't need birth control as my husband is infertile; this was prescribed to clear up a cyst.