I'm concerned about the possibility of Hypothyroid symptoms. I'm American, 32, white, female, and I've gained alot of weight recently. (I was 130lbs in March, and last week I weighed in at 146lbs) I'm only 5'0 tall, so I'm officially overweight now. I've always had low blood pressure, but recently, other symptoms have been cropping up. I have night sweats every night- my clothes are always drenched in the morning. That's never happened before this spring.