Begin coughing up mucus before I even get out of bed in the morning

So glad you asked this question with your explanation of how things are for you. I was somewhat under the impression I was the only one with the all day problem.
Yes, mornings begin with much need to clear the sputum. I also nearly cough all day long and as well have to clear the sputum when I wake up at night. I wake up at least three times a night. Hard to know if it is my bladder awaking me or the sputum that comes up to my throat. For me, I chew tiny piece(s) of stick gum (throughout the day and for a while upon waking at night before going back to sleep) and it seems to loosen it all and helps me get what I can up and out before trying to fall back to sleep. My choice of gum is the Extra Polar Ice. Never have I chewed gum but, for me, it does give me some relief...not sure why. I chew the heck out of the small piece of gum and try not to have more than a stick and a half within 24 hours. I don't drink water through the night with one reason being the possibility of GERD/Acid Reflux and another reason, water seems to cause more mucus to form and the need to clear out the sputum.
I find it all is worse after I eat, and I understand that a couple others mentioned in another thread, it being worse after eating.
I have noticed that after the day of all I have done I bring up more mucus plugs early evening.
Yes, it does cause one to hesitate from being with others and I hope with time and all we do to help clear the lungs daily, that will change.

The local pulmonologist I "ran" to first in my journey to find a pulmonologist specializing in BE, Bronchiectasis, also did not mention anything to do other than to buy a PEP devise and learn to use it. He did not mention nebulizing or any method to clear the lungs of the mucus/sputum.

How long have you been doing the routine you started with? I find it has taken me much time to find my way to what is best for me. I am still learning with the help of those here on Mayo.
Is it worse for you after eating?
Have you had to take antibiotics for a MAC infection?
Barbara

Is it normal to cough up sputum all day? I use nebulizer 3% saline and smart vest twice a day and usually get up lots of sputum. I still find that I am coughing up a lot of sputum all day. Good? Bad? Change in routine?

According to my RT, phlegm can vary from day to day. Some days more, some days less. The key is keep on top of twice a day airway clearance. In addition to nebulizing with 3% and using a best are you also employing airway clearance techniques?

I have not been very efficient at air way clearing techniques but I am seeing g a respiratory therapist next week.

Yes, I too find myself waking after a few hours, with the need to cough and clear the airways. This in spite of airway clearance in the evening before bed.
I get up and nebulize w/ albuterol and use the PEP device followed by breathing techniques (long inhale/hold/blow slowly and thoroughly for a few times followed by long inhale/hold/ huff somewhat forcibly a couple of times). This usually produces some relief.
I then go back to bed and can usually sleep another 3 or so hours.
Another thing which has helped me is that I have begun using lavage in the mornings, using the Neilmed Sinus Rinse. It was a surprising discovery as I have not thought about clearing the sinuses as well as the lungs.

I'm going to give my response on a new thread.