Hi! Firstly, stop worrying about going to work. Your time will come once C-19 is more under control. To care for others, 1 has to be healthy oneself
I had wicked period pains, flooding for years: 10 days bleed, 10 days off ......... the contraceptive Pill helped. I was sterilised when I was 23 and in my early 30s had dreadful premenstrual syndrome.
Did you bleed previously following Mirena insert, did your GP advise medication to stop the bleeding? Has you had a scan of your womb in recent years to measure the thickness of the lining? Maybe put 'Mirina coil' into the search box on here to see what pops up? Make notes
GPs are using lock down to not see patients
but with your symptoms and being 'one of them', I would have thought that you would have been given a priority slot!
Dizziness can pre-empt flushes. It can be caused to a trapped nerve or degenerative changes in the cervical spine. Or due to anaemia.
When did you last have a full blood count, ESR etc., along with a thyroid function test? Have a chat with your Practice Nurse to get this done. Thyroid function instability can cause some hot/cold feelings.