Started as abdominal pain, got worse over 5 days. Pain severe (7-8/10) when breathing deeply, pressing centre upper abdomen or lying on side. Pain sharp/stabbing in the centre &radiates to right&back. Pain a constant 2-3/10 when lying/standing in comfortable position and breathing into upper chest. Also fever occurred daily (~5h/day) reaching 38.5 accompanied by chills &muscle weakness, usually occurring in afternoon followed by drenching night sweats. Day 2 developed mouth and genital ulcers. Day 5 abdominal pain began to subside, almost gone now (day 8). Fever is also gone. Day 5 when other symptoms subsiding, excruciating headaches began (8or9/10) unable to move or open eyes, nausea, unresponsive to panadol/neurofen. I get migraines about once/yr, they only last a couple of hrs. This pain lasted 2 days. At its worst, pain was worse than a migraine. Imigran brought pain down to 5, but would worsen again after a few hrs. Only a few hrs per day of complete relief. Pain was pressure behind both eyes & infrequent sharp stabbing pain in right side of head. Sensitive to light during this time. Blood and urine tests, X-rays, ultrasound were inconclusive. Blood tests ruled out bacterial infection but showed body under severe stress. No signs of infection in pancreas/ gallbladder. Genital ulcers negative for herpes/yeast. Normal stool & urine consistency, colour, frequency, no blood. Doctor thinks it may be pleurisy of diaphragm caused by virus. Have not yet told Dr about headaches. Symptoms are best they've been now, dull headache & occasional stabbing pain, mild abdominal pain on deep breaths, ulcers are sore & severely fatigued. I’m concerned about lupus/bechets or other syndromes, but I don't know how long attacks usually last with these diseases. Or could all these symptoms be explained by a one off viral infection? Not sexually active, dont drink/smoke, normal diet, fit&active, healthy BMI & muscle mass. Caucasian Australian 26yo female & have not been travelling.