Mercurial, I think you should be glad you're good at getting projects done and then push yourself after getting a break - but not without a sense of caution (so you don't get into accidents or do anything a doctor would say is risky).
For me I have noticed that I have had ups and downs with the lethargy, months afterward, but I think it really is just an adaptation we have to go through. I'm not in my 20s anymore (40s now), so I don't have the same kind of Go mode, but there is still some NATURAL energy there! I have gotten away with being "basically fit-looking" through the years, but the alcohol-posing-as-energy did not do me any genuine favors. The return to sweets (which had been gone for years) is tapering down now and I am trying not to eat fatty junk while maintaining some minimum activity. Smaller/more meals, and even vitamins now. I wasn't an Adonis at 27, but I am going to try to approximate that picture with a ripened, wiser version.
