<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have an over active thyroid and am on carbimazole my thyroid levels are in the normal range although if the dose is reduced I end up having a thyroid crisis. I am currently on 5mg twice a day. I am 5 stone over weight and keep being told to lose weight. Believe me I am really trying i watch what I eat, walk the dogs when I can I have osteoarthritis, asthma and a fractured spine so activities are a bit limited. One week i could lose a couple of pound then the next week i weigh myself I have put that back on and more besides. How can I lose weight? I have heard that carbimazole can make it harder to lose weight.  <response>: Hi dear I read your problem of overactive thyroid and u taking Carbimazole 5 mg and have in normal range. You are also a pt of osteoarthritis, asthma and fractured spine because of this u have limited activities.First u do some investigation for u recent problem.1-THYROID PROFILE2-Hb3-SERUM FE4-SERUM Ca5-CXR PA VIEW6-XRAY OF KNEE AP AND LAT IN MY VIEW FIRST OF ALL1- U MAINTAIN UR THYROID LEVEL AND COMES IN THYROID LEVEL.2-HYPERTYROID CONDITION CAUSES OSTEOPOROSIS WHICH MAKES UR CONDITION WORST SO MAINTAIN THYROID LEVEL.3U MAINTAIN UR THYROID LEVEL AND THEN U CAN ALSO LOSE THERE WT EASILY.1-TAKE 1GLASS MILK EVERYDAY IN UR DIET.2-USE BOIL WATER IN UR DIET.3-DONOT USE VIGOROUS EXERCISE IT MAY PALPITATE BRONCHIAL ASTHMA.4-TO LOOSE WT AVOID FATTY AND HOLY FOOD ITEMS.THANKS FOR QUERY 