Signs of a gas leakage can range significantly depending on the severity Certain frequent indicators might include an noticeable scent hissing or sibilant sounds cephalalgia sickness giddiness and exhaustion Moreover you may also experience difficulty breathing heart pains epistaxis and ocular inflammation If you suspect a leaking gas it's vital to immediately leave the premises and call emergency services Do not endeavor to deal with a gas leakage on your own; let it be to the trained professionals to solve the issue without risk