Hi, I had gone through your question and understand your concerns. Gall stones may cause some abdominal discomfort including abdominal cramps, diarrheas,nausea or vomit but it should not cause anal pressure of any kind. High wbc count is usually sign of infection or inflammation and it may be elevated if there is acute inflammation of gallbladder but is is usually associated with pain under right rib cage. If you dont have it then you should look for another cause of fever such as enterocolitis and stool analysis results are required or this. Later, you can consult surgeon about surgery need,but you should not rush with it. I hope I have answered your query. Wish you good health.