I received my prismatic lenses. What a dreadful experience.
I tried them on for a minute in the shop and I immediately felt like on a rollercoaster. For hours afterwards, looking at my phone without glasses felt extremely unpleasant. Not a good start, and indeed I kept the glasses in the case for the following week. Then I decided to give them a serious go. I started with wearing them for close-up activity (working on my laptop) for 20-30 minutes. I could sense something going on in my neck and head, and I tried to convince myself that it was part of the adjustment process. Pulled the glasses off, I went for a walk. Horrible vertigo. Enough for the day.
In the next couple of days I wore the glasses pretty much every time I worked on my laptop and even when I used PCs connected to a monitor and at night in bed reading from my phone, a book and my Kindle. Long story short, on day 4 I had developed so much pain in my arms, wrists and legs down to my ankles (can you believe it!) and spams in my face and my arms that I put the glasses in the case and sealed it.
On the same day, I booked an appointment with a new specialist, a behavioral optometrist I had been long keen on seeing, and asked for his opinion. He told me I should not wear those glasses anymore and that prisms are not the answer to my condition.
I will update on how the situation develops. The preliminary plan is to combine vision therapy with simple glasses for close-up work without prisms. Apparently, prisms are not a must to correct esophoria (at least a small degree of convergence excess).