Appendix was removed had surgery 1/23/12 now having pain upper left abdomin.

Pain : Pain in this area is very tricky since there are many organ systems in the epigastric area and left upper quadrant of the abdomen. - stomach - problems such as gastroesophageal reflux, gastritis, and stomach ulcers can cause pain in these areas - usually worse with eating and worse while laying down - pancreas - pancreatitis, pancreatic stones/blockages can cause epigastric pain, sometimes radiating to the back -spleen - an enlarged spleen can occasionally cause discomfort - intestinal - duodenal ulcers, infections and constipation can cause pain there because the colon loops up into that area - kidney - kidney stones or infections can cause pain in the left upper quadrant, though many people feel it in their backs. - gyne (if you are female) - ovarian pain from a cyst or even an infection from a sexually transmitted disease can cause pain in the right upper quadrant. - adhesions - some people will experience pain from the scar tissue that forms after surgery. This is especially true if your appendix was ruptured prior to removal. And all those are just a few of the things that could be going on. So, your best option is to be seen by a doctor and examined to determine the cause of your pain. Reasons to go to the er are: - high fever - bloody stool - bright green or bloody vomit - severe or worsening pain - difficulty breathing.

Not related: This is a new problem not related to the appendectomy. Hard to diagnose over the internet without more information, get it checked out.