My husband is going to be 38. 2 days ago my husband woke up and both feet where swollen. He said he felt fine. The next day I didn't think something was right and we took him to the walk in clinic. They said that it could be his kidney's. He drinks a 2 liter of mountain dew a day or more. They drew some blood for diabeties and kidney. The diabeties came back negitive. The kidney test has not come back yet. Now the other thing is they said that he had a slow heart beat. His feet are still swollen and now he just got a headache. Should we go to the emergancy room. He says no but i am concerned.