question: I have the stomach flu . First day , diaheria almost to the point of dehydration . I couldn t even keep water down .low grade fever. Severe headache , stomach pain and going on the 4 th day in bed. Getting better but virtigo continues. How long does the vertigo , headache and weakness last and what do you recommend to take? Also it s been a month of blowing my nose and blood filled tissues Thank you, Rhonda