I have mind speak AND dream scenes/visions.

Italics

If I understand correctly, you are indicating spoken dialog by regular use of quotation marks. No problem.

Your problem is you want to use italics to indicate thoughts and dream sequences without confusing the two. I'm assuming italics are also being used to indicate titles of books, plays, ships, bridges, etc., as well as emphasized and foreign words.

I have a similar concern in that I indicate signed dialog (by and for the deaf) by italics.

To do so -- as well as indicate emphasis, titles, and foreign words -- without confusing readers, I opted for another kind of thoughts. I indicate them with direct (he thought, she thought) attributives and indirect attributives:

There's no way, he thought. I won't do everything her way.

She looked on in horror: This isn't happening to me!

Mind speak? You mean 'thoughts'?

In the Iron Druid books by Kevin Hearne (very good, I recommend them), the main character has a telepathic link with his dog. His thoughts are shown in italics, the dog's are shown inside guillemets, the angled brackets used for quotations in French and other languages. «That would be these things.» Try using guillemets for the telepathy and italics for the dreams.

The simple fix is not to do the dream sequences in italics.

I have parts that are dreams and daydreaming about past events. I do not use italics. I have thought of using them when the MC remembers back about certain areas of her life. But i have also read that editors do not like the use of italics...whether this is correct or not I don't know. I would like to know for sure though.