@issy58 I haven't experienced constipation. I was originally referred to a rheumatologist 15 years ago because I had a swollen knuckle. He checked all my joints, asked a lot of questions, and took some blood. The fact that I had dry eyes, coupled with a positive blood test, led to the Sjogren's diagnosis. The dry mouth came later, then the peripheral neuropathy and autonomic neuropathy. I have been using Biotene Dry Mouth moisturizing gel before going to bed. It does help some but, like the pilocarpine and cevimeline, does not provide complete relief. (By the way, the swollen joint was not related to Sjogren's. I had apparently overused that finger doing some home maintenance work. It got better on its own.)

@issy58 Drink more fluids!! It is makes a huge difference.

I have morning decaf green tea (usually two cups)
a 40oz water mixed with coconut water
a second 40oz water jug in the afternoon, sometime I add a sugar free electrolyte table
a third 40 oz just water that I take to bed
this is in addition to the water we get from our foods and it never feels like enough.
In the heat it is not!