I'm a hypo too. I have been for 4 years. I am also on Synthroid. I think the common myth about hypothyroidism is that you will have trouble losing weight. This is a myth. If your thyroid is functioning at a normal level on meds, then it is a diet issue, not your thyroid. It did take my doc almost a year to get my dosage right, but exercise and proper eating will keep your weight under control anyways. So no need to worry.