Since 2 nights ago i suddenly have a sore throat and blocked nose. my ears feel blocked and poppy too, i have also had a nose bleed and bloody mucous ?

It depends: Your symptoms could be a few different things based on your personal medical history. Things to consider include a common cold and sinusitis. Inflammation of the nasal airway (from allergy, immune reaction, infection etc) can obstruct the drainage pathway of your middle ear, causing ear popping noises and a feeling of being "under water". A good start may be saline nasal rinses.