Last year I was suffering from severe hot flushes and nightsweats. I went to my doctor who sent me for a series of blood tests. I was diagnosed with an under active thyroid On 13 Dec and prescribed 50mg levoxthyrine. Within about a week the hot flushes and night sweats disappeared. During the past two weeks, they have started to come back. Could this be a thyroid problem or menopause? Is there anything that I can take for hot flushes whilst taking levoxthyrine?