You should seek medical help as soon as possible.
The two symptoms may be connected. The "migraine headache" may in fact be that you have a fever.
may be appendicitis, or a viral or bacterial infection of the lymph gland in that area. Lymph glands that are inflamed in the abdomen can mimic appendicitis. swollen
lymph glands in the abdomen is called Mesenteric Adenitis.