Hi there,I m really worried about a lump I have under my right butt cheek ,it s been there for awhile but over this last week iv noticed it s causing me bother,it s making me feel quoozy,down the side of my buttock down to my thigh on the outside it s like a numby warm sensation with a tingly pain goin right down my leg I can actually feel it in my calf ,I m quite worried as wen I walk and sit it doesn t feel that good,iv pains in my head which I don t no if they ve got anything to do with it or not but I don t feel right at all??? Thanku for your time:)sj