Nausea,tired, heartburn,pelvic pain and lower back,no period last period september negative test,emotional etc?

Related or not?: It's normal to be concerned about your health, & to worry why you feel bad. The GI possibilities alone are numerous--ranging from acid reflux or a peptic ulcer to pancreatic or biliary disease & even stress +/- migraines. Alarm signs include weight loss, bleeding, recurrent vomiting, significant tenderness. Whatever the cause, seek help from your doctor please for diagnosis, treatment, reassurance