Hi soozie
from me too.
Not sure about the trembling but is the dose in Kliovance the same as you had in the Elleste ie 1 mg, as this comes in two strengths? Also even if they are the same dose (ie 1 mg) and if the original HRT worked and you are now taking it every other day then as you say the reduction in oestrogen could be causing a resurgence of your original symptoms.
There is no need to stop HRT at all after 5 years - that is now old thinking due to the research (on which all the warnings are based) that has now been found to be flawed. General recommendations now are that you can take it as long as you like, provided that you are made aware of the small risks, and Dr Currie (info on this site) reports that between the age of 50 and 60 the benefits and risks of HRT are equal, if you are still experiencing symptoms.
There are several of us on here near or over 60 who have been on HRT some time and still taking it - such as myself who has been on it 8+ years and now age 62. As you get nearer and over 60 the general advice is to reduce risk, to transfer to patches or gel (with separate progestogen).
I would suggest if the Kliovance suited you otherwise, then go back to your original dose of 1 per day (after discussion with your doc - if s/he advised the reduction), or think of changing over to one of the patches at this point ( eg Evorel or Femseven conti).
Hurdity x