Extreme sudden craving for jalapeo, banana & black pepper, not possible for me to be pregnant, is there a underlying health issue here?

Possibly: Strong cravings for specific foods can be the result of a variety of reasons: fluctuating hormone levels, blood sugar levels, low serotonin levels in the brain, emotional reasons, or the release of endorphins (natural "feel-good" hormones that the body may release). Start with your doctor to research what may be causing your symptoms.