I got stomach bug need help :(

i got a stomach virus the other day, which was reallly bad, I was throwing up and having diarrhea at the same time, it was off and on for about every 30 minutes. I really thought I was going to die. I was so dehydrated and anything i drink or ate would come right back up. I did go to the hospital and got an IV , X-rays and Abdominal CT scan, only thing that showed up was my white blood count was high (19,000), I no longer felt nauseated when I got out the hospital, but I had occasional diarrhea since then anytime I have a bm. The virus I believe came from a family member, it seems like 5 others in my family experienced the same thing but not quite as bad as me. This is the seventh time I have experienced a stomach bug like this, but only once has it been apparent that it came from being around someone else that had it. Just to Note... about 2 1/2 years ago I had this same symptoms and at this time I didnt believe I had any serious health problems. So after getting sick, I sorta stayed sick and started having all the symptoms of extreme candida which took me nearly a year to find out thats what was wrong with me..... But it seems odd how my symptoms exploded like that after this bug ....I have probably had candida for a long time.. 10 plus years. I am mercury toxic , tested through hair analysis DMPS/EDTA challenge. Probably been poisoned since birth.

I would like to know if theres anything I can do to get my digestion normalized quickly. Because the last time I had this bug, it took me forever to recover from some of the digestion problems. after the past couple years of experimenting with diets, I know now that Grains,fried foods,and most dairy seem to hurt my digestion the most. But oddly I can eat some bread and be fine, except I will just cough up excessive mucus when I do. I have a blood Sugar problem that seems to limit me from eating candida diet. I will not sleep and feel really bad if I dont eat carbs.... i think im dying