Hi. Conservatively, you’ll lose “maybe” 10 lbs in 5 days, half of which you’ll gain back on re-feed I may be wrong - someone else may have the correct numbers.
Since you have experience with IF, 5 days is a good set up to start rolling 36s, 48s, etc, depending on your goals.
Edit: your body is more than likely holding onto water - but- you’re definitely losing fat.You may not be losing weight, but you are losing fat being at a caloric deficit.You’ve come this far so keep at it- it’s only 3 more days. You’re going to get the whoosh effect anytime now.
I am on my day 5 of fast and I lost little weight day 1 but nothing on 2nd, gained on the 3rd and then on the 4th and the 5th day I lost 0.7 & 1 kg and feel a sudden clarity. On the 3rd day, I was so ravenous and almost broke the fast but persisted and here I am. So I understand how you feel wondering if its worth the torture (that’s how I felt). Keep going.
Pleased to report I made it through the day without cracking. I did do lots of online food shopping/browsing without ever actually buying anything. Won’t be doing that again tomorrow… very unhelpful. I also realised I’ve accidentally quit vaping which I seem to have totally forgotten about, a nice unexpected bonus 😂
Nearly 48 hours in and now in bed so safe from the snack attacks! I’m having some hunger pangs so I’m looking forward to waking up tomorrow and seeing if the pangs are gone. And being gifted 8ish more hours of fasting 😇