Welcome.
You whinge away, it's a good place to vent.
Your symptoms are 'common' in peri. Some find that anxiety levels rise so it stands to reason that any OCD may well become more troublesome. When I find that I am washing my hands too often I make a list of when I ought to so that I can tick off each time.
A loss of oestrogen may cause laxity of muscles = aches and pains and the body may become dry: inside and out - so do read the vaginal atrophy threads. Make notes ;-). Get treatment if symptoms start.
Tinnitus - mine is slightly behind my head

and worse sometimes more than at others.
Why have you required regular CA125 tests? It's worth thinking about whether it's that your apron has fallen as osterogen has dropped off [mine did

] - whether the belly is soft or feels hard and if it might be the over all HRT regime.