If you instantly felt energy from eating more carbs, your body could be struggling to get into ketosis for some reason. Once you are through the hard work of induction, you SHOULD be in ketosis, and your energy should be in a more steady state, rather than the peaks and troughs of eating more carbs.

Is there a way to get reviews of the doctors on your insurance list? 90 minutes one way is a long way to go to be disappointed. But it's a reasonable distance to go for actual help.