What you all are experiencing is VERY normal. Irregular periods happen because your ovaries are starting to stop making hormones. You can't count on having anything regular from here on out.
I went through everything that you have, starting at 43, and I am now just about to turn 50 and I do see some light finally at the end of this ride. I have had only 2, very, very light periods (1 day each) this year so far.
When my periods finally started skipping last year, I had alot of ovary pain. I thought I was ovalating all the time. I think they were just sputtering their last breaths...LOL!
Anyway, I just wanted to give you some hope that this will pass. Almost every woman that has posted here, is going through pretty much the same thing. But understand that your periods are starting to cease and you just need to go with the 'flow'! Sorry for the pun!
Hang in there, Ladies!
Starting the other side!
Hot Flashes!! UGH!