This is Dr Basu, experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
Diarreha and vomiting can cause electrolyte imbalances resulting in charlie horses.
Sudden change in diet can cause these symptoms.
Viral infection is also quite possible.
Both in combination can cause diarrhea, vomiting.
Rest, fluids, Gatorade should help usually.
Also relax your diet a bit for now since you lost more than expected weight anyway.
Blood tests are not needed right now.
But if no improvement in next 3 days, then metabolic panel, stool tests are recommended.
It was my pleasure to help you today.
If I have answered all your questions, Please rate my response Excellent (click on the 5th star).
Please bookmark my profile for fast, reliable and authentic answers!
This is the link to my profile: