Fradley, I hope you can get some rest soon! In my younger days I worked 60-80 hours per week and there were times I felt like it was too much effort to lift a finger, literally. I'm glad you are posting and thoughtful about staying sober. I can tell you that even though i need to stay aware, after a bit over a year I'm feeling solid enough that I'm much more relaxed. Now on the rare occasions when I think a drink would be nice, thinking it through to the end takes care of it. I believe that you will get there. (((Hugs)))!
Key, 90 days isn't that long for the physical side of things. It will come. The doc can run blood tests if needed to check that you aren't deficient in the nutrients that tend to become depleted in active alcoholics.