Hi Jenny23
Sorry to hear about your palpitations, and trembling and yes if you are definitely peri-menopausal (period cycles have started changing and you are over 45, and no other cause has been found) this is one of the difficult symptoms that many women experience.
Acupuncture itself won't stop them but the relaxation that you feel when you are undergoing the treatment may well help some women, and sounds like it's helping you along with additional relaxation and breathing, so if that's the case, then do carry on.
However if the palpitations continue to cause you distress longer term such that they interefere with your normal activities, then do consider giving HRT a try, notwithstanding your worry about side effects, because this is known to alleviate menopausal palpitations and many women will testify to this.
The aim when taking HRT is to feel better while taking it than before, though some women do have to go through a period of adjustment and endure some side effects until they find the right treatment, and their body acclimatises. It's a question of deciding if you reach that point - that you want to take further steps, despite the difficulties, in order to see some improvement longer term. If so - we can help you with that ie helping you with HRT.
In the meantime all the best and hope you continue to cope, and let us know if we can help further.
Hurdity x