It will get better! what you are going through is from the ketosis diet and ketosis flu is making you feel terrible. Just google it. Understanding more of what is happening and why made this process a little easier to deal with for me and I hope it helps others. I felt hungry, tired, my head hurt and there was a sweet taste in my mouth but it passed after 3-4 days. The 6th day I was feeling like myself again. I actually feel even better then I was before starting the liquid diet!