after 18 months of blood tests, many G.P appointments and other hospital doctors, I have been diagnosed with overactive thyroid. I am unusual as most of my symptoms suggest underactive but my bloods say overactive, T4 is 15.7 and TSH is <0.01 I have been started on carbimazole 20mg twice daily, endocrinologist said he would have preferred me to go straight to radioactive iodine but due to have 2 young children and being a single parent it just isn't possible for me at this time, I suppose I'm asking what peoples experience has been on carbimazole and also i have heard and read some horror stories of the side effects, which has rather upset me and causes me complete fear, would love if anyone could share good or bad experiences