I felt unwell yesterday, nauseous and alittle dizziness. Came home had panadol and rested. Later I found a swelling forming with a pimple like head next to my anus, becoming quite firm and sore. I had a bad night with swelling getting firmer and slightly larger in size, dwafing the pimple head. I also have bit of pain in my stomch same side as swelling this morning. What are your thoughts (I have not had intercourse for yrs) I did have slight diareah, then solid stool later, the day before. What are your thoughts?