I am a 43 y/o female. Back in Aug i was on the nuvaring and was placed in the hospital with a DVT in my lower left leg. While in the hospital, they placed me on synthroid .25mcg. With no signs of hypothyroidism. I instantly gained 35 lbs and now have all the symptoms of hypothryroidism. My levels have been checked several times since being released from the hospital. All results have come back fine. I have tried to lose weight by changing my caloric intake to 1200 and walking 1 1/2 miles on treadmil (3.0 mph) 6 days a week and nothing is happening. 2 years prior to all this mess I lost 30 lbs by 1500 caloric intake and 5 miles 3 days per week. Something isn t adding up. Why are the results fine but now i m having the symptoms and can t lose weight?