Hi Rubyrue
Its difficult to explain the sudden increase in sweats though some women do seem to experience more flushes and sweats on the progesterone part of the cycle, so taking it continuously may be causing this, as well as symptoms such as anxiety. I would never take it continuously.
If you are taking it orally you might like to try vaginal delivery though again I wouldn't want to do this continuously due to effects on bladder and general fatigue.
The other thing is it might be coincidence. Approx two years following the last ovulation, oestrogen levels fall dramatically until they bottom out, and some women experience a worsening of symptoms at this point or they occur for the first time. Could this be the case for you? As you have been taking HRT, your cycle will have been going on in the background so I presume you don't know when your last ovulation took place?
Could it be therefore that you need to increase you oestrogen at this point?
So several suggestions - take prog vaginally, go back to a cycle, or increase oestrogen.
Hope this helps and you sort it out soon
Hurdity x