Lyme disease could also be the culprit. It can also cause all of your symptoms. I should know because my husband, my son and my self have lyme disease and a few co-infections.
Hi
Welcome to the MedHelp forum!
Night seats, chills, stomachache and headache can be mainly due to severe acidity with H pylori infection and gastric reflux. H. pylori infection can be diagnosed by carbon urea breath test. An endoscopy may need to be done. Consult a gastroenterologist. Meanwhile take Omeprazole empty stomach in morning and an antacid gel at bedtime. Refrain from smoking, alcohol, fuzzy drinks and spicy food. You may in addition need the relevant course of antibiotic if H pylori is detected.
Other causes include hypoglycemia, carcinoid syndromes, hyperthyroidism, AIDS, cancer (Hodgkin's Lymphoma), infections in the body, side effect of certain drugs, and sleep disorders. At times cause cannot be found out.
Since I cannot examine you and know other related conditions you may be having, nor is a detailed history possible on net, I have listed the various possibilities that should be looked into. Please consult your PCP to run tests and examination to clinch a diagnosis.
Take care!