<s>[INST] My husband had a nasty stomach virus which caused diarrhea and vomiting for about 24 hours. His stomach issues habpve cleared but now his spine is crooked. He is complaining of back pain. Could this be related? Or just caused from lying around for 24 hours? [/INST] Dear patient  When a patient gets diarrhea there is loss of fluids and dehydration. Along with fluids there is also loss of electrolyte  such as sodium and potassium.  Because this both electrolytes are vital for normal muscle function  a person with diarrhea gets back pain with loss of electrolyte. So ask him to  take lots of fluids along with oral rehydration  solution. Give extra salt and coconut  water and he will be fine. </s>