Good for you getting back on it Sideshow.
I have been in the exact same place myself: seeing progress, doing a sloppy job of TSM, then sliding all over the shop and having the odd bit of abstinence interspersed with heavier drinking than ever. It is definitely worth trying again. It seems a lot of effort to record your drinks, wait for an hour, remember your pills etc... but surely no more effort than I've expended trying to manage my life on the drunk/ hungover rollercoaster! I find the main obstacle to be the preparation and conscious effort involved, which is the antithesis of my regular non-TSM drinking behaviour. So I'm waiting a little while to start drinking again.
I have found the less frequently I take NAL, the more severe the side effects are. I hesitate to encourage anyone to drink more if they don't feel like it, but is it worth taking half a pill followed by only one or two drinks on the odd night when you don't feel like it... just to get accustomed to the NAL? The nausea definitely goes away after a week or so in my experience. Otherwise it might just be the price you have to pay unfortunately. Taking it with something substantial to eat helps though.
Best of luck, and keep posting no matter what your success with the method is - it's quite therapeutic
