Short and obese

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Hi everyone my name is katie. Yesterday I was at the doctors, I had a sore neck but I also had other issues, I have been feeling very low and extremely tired. I could literally sleep all day. The doctor took my blood as she thinks I may have some thyroid problems. I gained 20kg in 4 months and for my height of 148cm I have a BMI of 30 equalling Obese. I was on anti depressants for a bit and being honest I do pick and eat large meals..... I am hoping to start a family towards the end of the year... But I need to lose this weight. I am interested in anyone else who is in a similar position. I am going on a summer holiday in August and I would like to be a size 10 for that if I can, like a 32nd birthday present for myself. Feel free to chat