I am suffering lower abdominal pain since 75 days

Arthritis pain often includes stiffness, swelling, and difficulty moving the joint, especially after waking up. Rheumatoid arthritis may cause fatigue or fever. Proper diagnosis can only be made after physical exams, X-rays, or blood tests, so visiting a doctor is important.

Viral fever duration for most viral infections is 3-5 days , in few cases it may take 14 days

You should see a doctor if your back pain lasts longer than a few weeks, is severe, or is accompanied by symptoms like fever, numbness, or weakness in the legs. Proper treatment is necessary if the pain follows an accident or injury.