Congratulations on your weight loss. When I first experienced ketosis I went through the keto flu for a few days. It was so hard and I felt fatigued. Afterwards I too had this massive amount of energy boost that came and I felt so much better after that.
It is a lifestyle change. I initially started it to loose my preggo belly bump but now I do it to better my overall health.
I hope you are able to recover from the conditions you have and I hope you can keep your energy level up. Thanks for sharing your experience.