Hi and welcome to the forum.
I think you'll find the majority on here who suffer symptoms will tell you morning anxiety is "normal" in peri menopause, it's a cortisol rush, I had exactly the same and it WILL affect your bowels,same as when you get butterflies,you tend to need the loo, so please don't worry, I've no idea how long it will last for you as every single one of us are different,mine lasted about a year but even now at 62 I can still wake with anxiety,almost like a panic attack.
Do speak to a meno savvy Dr or nurse,let them know your symptoms. Xx