I have heavy sweats and at the same time ice-cold skin at night. I have to get up to cool off. Takes up to two hours. It's getting more fequent - three times last night. Does any hypo sufferer have the same? I have what I supposed ar normal symptoms - dizziness, nausea, fatigue, etc. I've been on synthroid 100mg/day for a year.. To start with my TSH was 38. My tests over nine months are within range except that my free T3 is going down closer to the minimum. But the symptoms continue. Anyone in this hopeless situation?