Refeeding syndrome. Are there dangers after seven days of water/semi dry fast? thank you!!!

Hi, I have been doing a seven day water/dry fast and yesterday I was researching ways to break the fast and I saw the dangers of refeeding syndrome and I got scared!
Today I bought some potassium and magnesiuma and phosphoserine and b1 although beside the b1 which I take 300 mg I don't know the dosage of the other ones. Are there any dangers of the syndrome and heart failure after 7 days of water/dry? (when I say dry means that there were days I wasn't thirsty so I may have drunk 500ml of water not more) I lost 8 kg in 7 days I was 95 I am 87. I was resting a lot as well, just exerted myself yesterday and today a bit.
Today my first meal has been dark vegetable juice with an apple, some sauerkrauts and about 100 grams of pumpkin seeds which contain phosphorus
1 hour after that I had diarrhea is that normal?
What are your thoughts on the dangers and dosages and also the time I should wait until I eat some carbohydrates like bread?
Sorry for these many questions, very anxious!
Thank you so much! Tweet