Hello Dotty.
I would say yes, symptoms seem to come and go with gay abandon! I am post meno and have been using various types of HRT for over three years and I'm still experiencing a frustrating lack of stability. Only this morning I was imagining that the oestrogen receptive cells in my body seem to be taking it in turns to register their annoyance at no longer getting their chemical fix and as soon as one lot become exhausted from complaining another lot take their place. As an example I woke every two hours last night but slept like a log the night before and have no idea why.
I hope this reassures you that there are many versions of normal on this journey and that you begin to feel better soon.
Take care.
K.