Hi, Ellekay, welcome. Congrats on starting your reboot! Good things are in store! Don't stop until your miracle happens. Hang in there! You can do it!
In answer to your question, yes, I go quite insane with cravings, stomach cramps, and hunger pains very quickly when I start juice only, even if I've spent time transitioning so that my food intake is very clean leading up to juice only. :/ I can get quite crazy with food thoughts, drooling (mentally that is, lol) and cravings.
One thing that has helped me is someone here on the reboot groups said when you think you are hungry or sick like that, drink more juice the first few days. So I pretty much do unlimited juice to make it thru.
Another thing is to make hot soup broth, clear. That seems to really help me when I feel sick.
Also, come stay on the reboot groups and talk to people -- it provides lots of good info and also a distraction. Immerse yourself in the reboot and juice!
We were just talking about tips like this on one of these reboot groups below so please come join us and read some of the group wall posts. ( Most of us post on the group wall -- don't send message to the entire group.)
You don't have to be in sync with anyone else's reboot, so come join us... (Tthese aren't active links so if you need help finding them, send me a private message. I have been inviting people over since it was hard for me to find groups and where to post. I just finally snapped a photo of the screen showing groups. Many people won't see you over here. HTH. )