Optishakes make you weak?
Yup, I could barely crawl up the stairs at the end of the work day. I was in bed by 7:30/8:00 most nights for the first week and a bit. You will get use to it. You won't have tons of excess energy - but you'll lose the weak feeling probably in the next few days. Hang in there. This really is the worst part of the process!!!
TES
Me too! I'm now on day 14 of 21 and it is just getting better for me now. Hang in. Weakness, headache, coldness all improve. It's normal but awful. I have bitten my husband's head off several times (per hour, he says! Lol) and cursed a blue streak! Whatever gets you through it, try to remember it's not forever. Go moment by moment. Best wishes!