PB
Fear not, this too shall pass.
I had the same thing. At about the same stage. Ambushes out of nowhere. A multisensory attack of wanting a beer. Took me totally by surprise.
These visualizations will become less and less frequent, less intense. Just be prepared. Mine usually occurred during "ritual" time-the times I would "normally" have a beer. Have a plan. I always have plenty of juice on hand. And although I have never liked sweets, I began to keep some around. Seemed to help.
Once I got used to the fact that these "ambushes" were going to occur, they became very manageable. Sometimes I'd even laugh when they happened.
These days (two months) they are rare, indeed. I now have far to much to lose by even paying attention to them.
One thing I would do early on, when they were very intense is write here. The act of writing occupies countless neurons and areas of the brain. Writing requires so much neurological processing power, that there is little left for anything else. Worked for me.
warren