Is it necessary to go to the ER if you have a hiatus hernia and you have developed new symptoms such as difficulty breathing while sitting down or after eating, diarrhea since new symptoms (5 days now) pain and pressure in chest,left arm, neck and a headache everyday, extreme dizziness to the point of passing out when trying to take a deep breath or when I cough, cough is new too. since yesterday my whole stomach is tender to touch, also I have been having leg cramps through out the day and when Im sleeping my lower legs and feet hurt to the point of waking me up.