Hi, I started keto 4 days ago and was in ketosis the 2nd day. I was 228 on Monday and have lost 8 in 4days. Should I be worried?

The first week on any new eating regime involves a bigger drop than at any other time.  It's your liver dumping its glycogen stores. Along with that is water retention. 

Hi Lisa, I’ve wondered the same thing. Terror Smurf’s is right, you’ll see a big drop at first. It’s different for everyone, but I plateau, then drop again, etc..  I’ve been on keto for about 45 days and lost 20.4 labs, but it’s been a rollercoaster: 4 days of plateau, and then -3.5 lbs in 3 days. Just stick with your tracking and it will work!