Thanks for this, I assumed it might be something along these lines. Fat burning (hopefully) and increased protein etc is likely to be causing most of the issues. Before I started training this often/hard I doubt my protein levels were as high as they are now and my carbs were definitely too high.
Best thing to do is get rid of as much of it asap and then get back to sleeping better.
I do find that sleep quality is affected though and it might be worthwhile training in the morning (I am just not a morning person though).
Up at 7:30 at work for 9:00 and then in the gym for about 18:15 ish. Train till about 19:45 roughly and then walk home for about 20:30 dinner and then bed about 22:30 0r 23:00. I personally don't think that is enough time between eating and sleeping, which might also be having an effect on the frequency of the nighttime peeing trips.
To answer the thermogenic question I take MyProtein thermo extreme (usually one or two before training at about 18:00). While this might be a little late it doesn't seem to make me less tired later on.