Hello KSB.
I'm so sorry that you are suffering and I hope you'll forgive me but your post really cheered me up!
Unfortunately I have been having a very similar experience and I am so relieved to learn that I am not alone ( I know we say that a lot on this site but it really helps to have confirmation that I am not some kind of hormonal freak lol).
My situation is slightly different in that I've only had intermittent relief in the form of good and bad spells through the day however last month I enjoyed seven days straight of feeling calm and normal so I dared to hope that this nightmare was drawing to a close. Well, you can guess how that panned out lol! My days lately have featured immense irritability, scary low mood, bit of nausea and that old favourite, irrational panic.
I am about to start yet another HRT regime and I'm praying it works because I am heartily sick of this rollercoaster ride.
I wish I could be of more help but I do sympathise, this time of life certainly tries your patience.
Wishing you well and take care.
K.