hi thanks for posting your query on healthcare magic. the sequence of symptoms which you underwent suggest localised pyogenic infection most notably acute appendicitis which went on to produce chronic appendicitis on delaying the surgical attention for some reasons for 6 months as in your case..appendicitis is known to occur following sudden occlusion of its lumen.as its a vestigeal organ,its always removed by surgery.its produces symptoms like vomiting,pain initially on the left side of the lower abdomen and later pain migration to right side of stomach.chronic appendicitis is more dangerous in terms of complication as its more prone to produce spreading infection at the time of surgery...it can also be prone to rupture further complicating surgery,affecting near by bowel loops causing gangrenous appendicitis as in your case.you underwent your surgery at this stage of the disease.a more comprehensive approach is needed at the earliest ,would have saved some of those bowel loops and prevented serious peritoneal infection in your case,anyhow now you are operated and the infective focus removed,you are out of danger and you will soon be normal,of course you need to curtail your athletic activity to a large extent post surgery.follow a healthy dietary regimen post surgery to improve your general health. thank you. take care.