I have had headaches since December 2010. I miscarried in Novemeber 2010 and starting back on the nuva ring. The ER told me last night that they dont know what caused my headaches but advice me to take out the ring. My question is that my behind my left calf hurt and they diagnosied it as tendinitis. THey did the d dimer test and said my blood level were elevated but found no clots. Should I have them look elsewhere. I have had headaches, lower back pain, mood swings like depression, sleep troubles and weezing when i sleep. I feel bad everyday but push on because I am a soldier and have to work. what can I do to feel better.